Finish up import script incremental and reliability updates

inventory-server/db/config-schema.sql

@@ -184,6 +184,7 @@ CREATE TABLE IF NOT EXISTS import_history (
     start_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     end_time TIMESTAMP NULL,
     duration_seconds INT,
+    duration_minutes DECIMAL(10,2) GENERATED ALWAYS AS (duration_seconds / 60.0) STORED,
     records_added INT DEFAULT 0,
     records_updated INT DEFAULT 0,
     is_incremental BOOLEAN DEFAULT FALSE,

inventory-server/db/schema.sql

@@ -52,7 +52,7 @@ CREATE TABLE products (
     notifies INT UNSIGNED DEFAULT 0,
     date_last_sold DATE,
     PRIMARY KEY (pid),
-    UNIQUE KEY unique_sku (SKU),
+    INDEX idx_sku (SKU),
     INDEX idx_vendor (vendor),
     INDEX idx_brand (brand),
     INDEX idx_location (location),
@@ -118,6 +118,7 @@ CREATE TABLE IF NOT EXISTS orders (
     status VARCHAR(20) DEFAULT 'pending',
     canceled TINYINT(1) DEFAULT 0,
     PRIMARY KEY (id),
+    UNIQUE KEY unique_order_line (order_number, pid),
     KEY order_number (order_number),
     KEY pid (pid),
     KEY customer (customer),
@@ -147,7 +148,6 @@ CREATE TABLE purchase_orders (
     received_by INT,
     receiving_history JSON COMMENT 'Array of receiving records with qty, date, cost, receiving_id, and alt_po flag',
     FOREIGN KEY (pid) REFERENCES products(pid),
-    FOREIGN KEY (sku) REFERENCES products(SKU),
     INDEX idx_po_id (po_id),
     INDEX idx_vendor (vendor),
     INDEX idx_status (status),

inventory-server/scripts/import-from-prod.js

@@ -10,8 +10,8 @@ const importPurchaseOrders = require('./import/purchase-orders');
 dotenv.config({ path: path.join(__dirname, "../.env") });
 
 // Constants to control which imports run
-const IMPORT_CATEGORIES = false;
-const IMPORT_PRODUCTS = false;
+const IMPORT_CATEGORIES = true;
+const IMPORT_PRODUCTS = true;
 const IMPORT_ORDERS = true;
 const IMPORT_PURCHASE_ORDERS = true;
 
@@ -48,7 +48,6 @@ const sshConfig = {
     connectionLimit: 10,
     queueLimit: 0,
     namedPlaceholders: true,
-    maxAllowedPacket: 64 * 1024 * 1024, // 64MB
     connectTimeout: 60000,
     enableKeepAlive: true,
     keepAliveInitialDelay: 10000,
@@ -162,32 +161,36 @@ async function main() {
       results.categories = await importCategories(prodConnection, localConnection);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
-      if (results.categories.recordsAdded) totalRecordsAdded += results.categories.recordsAdded;
-      if (results.categories.recordsUpdated) totalRecordsUpdated += results.categories.recordsUpdated;
+      console.log('Categories import result:', results.categories);
+      totalRecordsAdded += results.categories?.recordsAdded || 0;
+      totalRecordsUpdated += results.categories?.recordsUpdated || 0;
     }
 
     if (IMPORT_PRODUCTS) {
       results.products = await importProducts(prodConnection, localConnection, INCREMENTAL_UPDATE);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
-      if (results.products.recordsAdded) totalRecordsAdded += results.products.recordsAdded;
-      if (results.products.recordsUpdated) totalRecordsUpdated += results.products.recordsUpdated;
+      console.log('Products import result:', results.products);
+      totalRecordsAdded += results.products?.recordsAdded || 0;
+      totalRecordsUpdated += results.products?.recordsUpdated || 0;
     }
 
     if (IMPORT_ORDERS) {
       results.orders = await importOrders(prodConnection, localConnection, INCREMENTAL_UPDATE);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
-      if (results.orders.recordsAdded) totalRecordsAdded += results.orders.recordsAdded;
-      if (results.orders.recordsUpdated) totalRecordsUpdated += results.orders.recordsUpdated;
+      console.log('Orders import result:', results.orders);
+      totalRecordsAdded += results.orders?.recordsAdded || 0;
+      totalRecordsUpdated += results.orders?.recordsUpdated || 0;
     }
 
     if (IMPORT_PURCHASE_ORDERS) {
       results.purchaseOrders = await importPurchaseOrders(prodConnection, localConnection, INCREMENTAL_UPDATE);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
-      if (results.purchaseOrders.recordsAdded) totalRecordsAdded += results.purchaseOrders.recordsAdded;
-      if (results.purchaseOrders.recordsUpdated) totalRecordsUpdated += results.purchaseOrders.recordsUpdated;
+      console.log('Purchase orders import result:', results.purchaseOrders);
+      totalRecordsAdded += results.purchaseOrders?.recordsAdded || 0;
+      totalRecordsUpdated += results.purchaseOrders?.recordsUpdated || 0;
     }
 
     const endTime = Date.now();

inventory-server/scripts/import/orders.js

@@ -1,5 +1,5 @@
 const { outputProgress, formatElapsedTime, estimateRemaining, calculateRate } = require('../metrics/utils/progress');
-const { importMissingProducts } = require('./products');
+const { importMissingProducts, setupTemporaryTables, cleanupTemporaryTables, materializeCalculations } = require('./products');
 
 /**
  * Imports orders from a production MySQL database to a local MySQL database.
@@ -21,6 +21,46 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
   let recordsUpdated = 0;
 
   try {
+    // Insert temporary table creation queries
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS temp_order_items (
+        order_id INT UNSIGNED NOT NULL,
+        pid INT UNSIGNED NOT NULL,
+        SKU VARCHAR(50) NOT NULL,
+        price DECIMAL(10,2) NOT NULL,
+        quantity INT NOT NULL,
+        base_discount DECIMAL(10,2) DEFAULT 0,
+        PRIMARY KEY (order_id, pid)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+    `);
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS temp_order_meta (
+        order_id INT UNSIGNED NOT NULL,
+        date DATE NOT NULL,
+        customer VARCHAR(100) NOT NULL,
+        customer_name VARCHAR(150) NOT NULL,
+        status INT,
+        canceled TINYINT(1),
+        PRIMARY KEY (order_id)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+    `);
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS temp_order_discounts (
+        order_id INT UNSIGNED NOT NULL,
+        pid INT UNSIGNED NOT NULL,
+        discount DECIMAL(10,2) NOT NULL,
+        PRIMARY KEY (order_id, pid)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+    `);
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS temp_order_taxes (
+        order_id INT UNSIGNED NOT NULL,
+        pid INT UNSIGNED NOT NULL,
+        tax DECIMAL(10,2) NOT NULL,
+        PRIMARY KEY (order_id, pid)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+    `);
+
     // Get column names from the local table
     const [columns] = await localConnection.query(`
       SELECT COLUMN_NAME 
@@ -36,51 +76,11 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
     );
     const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
 
-    // Create temporary tables for staging data
-    await localConnection.query(`
-      CREATE TEMPORARY TABLE temp_order_items (
-        order_id INT UNSIGNED,
-        pid INT UNSIGNED,
-        SKU VARCHAR(50),
-        price DECIMAL(10,3),
-        quantity INT,
-        base_discount DECIMAL(10,3),
-        PRIMARY KEY (order_id, pid)
-      ) ENGINE=InnoDB;
+    console.log('Orders: Using last sync time:', lastSyncTime);
 
-      CREATE TEMPORARY TABLE temp_order_meta (
-        order_id INT UNSIGNED PRIMARY KEY,
-        date DATE,
-        customer INT UNSIGNED,
-        customer_name VARCHAR(100),
-        status TINYINT UNSIGNED,
-        canceled TINYINT UNSIGNED
-      ) ENGINE=InnoDB;
-
-      CREATE TEMPORARY TABLE temp_order_discounts (
-        order_id INT UNSIGNED,
-        pid INT UNSIGNED,
-        discount DECIMAL(10,3),
-        PRIMARY KEY (order_id, pid)
-      ) ENGINE=InnoDB;
-
-      CREATE TEMPORARY TABLE temp_order_taxes (
-        order_id INT UNSIGNED,
-        pid INT UNSIGNED,
-        tax DECIMAL(10,3),
-        PRIMARY KEY (order_id, pid)
-      ) ENGINE=InnoDB;
-    `);
-
-    // Get base order items first
-    const [orderItems] = await prodConnection.query(`
-      SELECT 
-        oi.order_id,
-        oi.prod_pid as pid,
-        oi.prod_itemnumber as SKU,
-        oi.prod_price as price,
-        oi.qty_ordered as quantity,
-        COALESCE(oi.prod_price_reg - oi.prod_price, 0) * oi.qty_ordered as base_discount
+    // First get all relevant order items with basic info
+    const [[{ total }]] = await prodConnection.query(`
+      SELECT COUNT(*) as total
       FROM order_items oi
       USE INDEX (PRIMARY)
       JOIN _order o ON oi.order_id = o.order_id
@@ -89,15 +89,63 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
         AND o.date_placed_onlydate IS NOT NULL
         ${incrementalUpdate ? `
           AND (
-            o.stamp > ?
+            o.stamp > ? 
             OR oi.stamp > ?
-            OR o.date_placed > ?
-            OR o.date_shipped > ?
-            OR o.date_cancelled > ?
-            OR o.date_updated > ?
+            OR EXISTS (
+              SELECT 1 FROM order_discount_items odi 
+              WHERE odi.order_id = o.order_id 
+              AND odi.pid = oi.prod_pid
+            )
+            OR EXISTS (
+              SELECT 1 FROM order_tax_info oti 
+              JOIN order_tax_info_products otip ON oti.taxinfo_id = otip.taxinfo_id
+              WHERE oti.order_id = o.order_id 
+              AND otip.pid = oi.prod_pid
+              AND oti.stamp > ?
+            )
           )
         ` : ''}
-    `, incrementalUpdate ? [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime] : []);
+    `, incrementalUpdate ? [lastSyncTime, lastSyncTime, lastSyncTime] : []);
+
+    console.log('Orders: Found changes:', total);
+
+    // Get order items in batches
+    const [orderItems] = await prodConnection.query(`
+      SELECT 
+        oi.order_id,
+        oi.prod_pid as pid,
+        oi.prod_itemnumber as SKU,
+        oi.prod_price as price,
+        oi.qty_ordered as quantity,
+        COALESCE(oi.prod_price_reg - oi.prod_price, 0) * oi.qty_ordered as base_discount,
+        oi.stamp as last_modified
+      FROM order_items oi
+      USE INDEX (PRIMARY)
+      JOIN _order o ON oi.order_id = o.order_id
+      WHERE o.order_status >= 15
+        AND o.date_placed_onlydate >= DATE_SUB(CURRENT_DATE, INTERVAL ${incrementalUpdate ? '1' : '5'} YEAR)
+        AND o.date_placed_onlydate IS NOT NULL
+        ${incrementalUpdate ? `
+          AND (
+            o.stamp > ? 
+            OR oi.stamp > ?
+            OR EXISTS (
+              SELECT 1 FROM order_discount_items odi 
+              WHERE odi.order_id = o.order_id 
+              AND odi.pid = oi.prod_pid
+            )
+            OR EXISTS (
+              SELECT 1 FROM order_tax_info oti 
+              JOIN order_tax_info_products otip ON oti.taxinfo_id = otip.taxinfo_id
+              WHERE oti.order_id = o.order_id 
+              AND otip.pid = oi.prod_pid
+              AND oti.stamp > ?
+            )
+          )
+        ` : ''}
+    `, incrementalUpdate ? [lastSyncTime, lastSyncTime, lastSyncTime] : []);
+
+    console.log('Orders: Processing', orderItems.length, 'order items');
 
     const totalOrders = orderItems.length;
     let processed = 0;
@@ -111,7 +159,13 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
       ]);
 
       await localConnection.query(`
-        INSERT INTO temp_order_items VALUES ${placeholders}
+        INSERT INTO temp_order_items (order_id, pid, SKU, price, quantity, base_discount)
+        VALUES ${placeholders}
+        ON DUPLICATE KEY UPDATE
+          SKU = VALUES(SKU),
+          price = VALUES(price),
+          quantity = VALUES(quantity),
+          base_discount = VALUES(base_discount)
       `, values);
 
       processed += batch.length;
@@ -275,16 +329,82 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
         const singlePlaceholder = `(${columnNames.map(() => "?").join(",")})`;
         const placeholders = Array(validOrders.length).fill(singlePlaceholder).join(",");
 
-        const query = `
-          INSERT INTO orders (${columnNames.join(",")})
-          VALUES ${placeholders}
-          ON DUPLICATE KEY UPDATE
-            ${columnNames.map(col => `${col} = VALUES(${col})`).join(",")}
-        `;
+        // First check which orders exist and get their current values
+        const [existingOrders] = await localConnection.query(
+          `SELECT ${columnNames.join(',')} FROM orders WHERE (order_number, pid) IN (${validOrders.map(() => "(?,?)").join(",")})`,
+          validOrders.flatMap(o => [o.order_number, o.pid])
+        );
+        const existingOrderMap = new Map(
+          existingOrders.map(o => [`${o.order_number}-${o.pid}`, o])
+        );
 
-        const result = await localConnection.query(query, values.flat());
-        recordsAdded += result.affectedRows - result.changedRows;
-        recordsUpdated += result.changedRows;
+        // Split into inserts and updates
+        const insertsAndUpdates = validOrders.reduce((acc, order) => {
+          const key = `${order.order_number}-${order.pid}`;
+          if (existingOrderMap.has(key)) {
+            const existing = existingOrderMap.get(key);
+            // Check if any values are different
+            const hasChanges = columnNames.some(col => {
+              const newVal = order[col] ?? null;
+              const oldVal = existing[col] ?? null;
+              // Special handling for numbers to avoid type coercion issues
+              if (typeof newVal === 'number' && typeof oldVal === 'number') {
+                return Math.abs(newVal - oldVal) > 0.00001; // Allow for tiny floating point differences
+              }
+              return newVal !== oldVal;
+            });
+
+            if (hasChanges) {
+              acc.updates.push({
+                order_number: order.order_number,
+                pid: order.pid,
+                values: columnNames.map(col => order[col] ?? null)
+              });
+            } else {
+              acc.inserts.push({
+                order_number: order.order_number,
+                pid: order.pid,
+                values: columnNames.map(col => order[col] ?? null)
+              });
+            }
+            return acc;
+
+        // Handle inserts
+        if (insertsAndUpdates.inserts.length > 0) {
+          const insertPlaceholders = Array(insertsAndUpdates.inserts.length).fill(singlePlaceholder).join(",");
+          
+          const insertResult = await localConnection.query(`
+            INSERT INTO orders (${columnNames.join(",")})
+            VALUES ${insertPlaceholders}
+          `, insertsAndUpdates.inserts.map(i => i.values).flat());
+          
+          recordsAdded += insertResult[0].affectedRows;
+        }
+
+        // Handle updates - now we know these actually have changes
+        if (insertsAndUpdates.updates.length > 0) {
+          const updatePlaceholders = Array(insertsAndUpdates.updates.length).fill(singlePlaceholder).join(",");
+          
+          const updateResult = await localConnection.query(`
+            INSERT INTO orders (${columnNames.join(",")})
+            VALUES ${updatePlaceholders}
+            ON DUPLICATE KEY UPDATE
+              SKU = VALUES(SKU),
+              date = VALUES(date),
+              price = VALUES(price),
+              quantity = VALUES(quantity),
+              discount = VALUES(discount),
+              tax = VALUES(tax),
+              tax_included = VALUES(tax_included),
+              shipping = VALUES(shipping),
+              customer = VALUES(customer),
+              customer_name = VALUES(customer_name),
+              status = VALUES(status),
+              canceled = VALUES(canceled)
+          `, insertsAndUpdates.updates.map(u => u.values).flat());
+          
+          recordsUpdated += updateResult[0].affectedRows / 2;  // Each update counts as 2 in affectedRows
+        }
 
         importedCount += validOrders.length;
       }
@@ -312,15 +432,9 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
     // Import missing products if any
     if (missingProducts.size > 0) {
       try {
-        // Setup temporary tables again since they were dropped
-        await setupTemporaryTables(localConnection);
-        await materializeCalculations(prodConnection, localConnection);
-        
+        // Import missing products directly without materialization
         await importMissingProducts(prodConnection, localConnection, Array.from(missingProducts));
         
-        // Clean up temporary tables after missing products import
-        await cleanupTemporaryTables(localConnection);
-        
         // Retry skipped orders after importing products
         if (skippedOrders.size > 0) {
           outputProgress({
@@ -438,8 +552,8 @@ async function importOrders(prodConnection, localConnection, incrementalUpdate =
     return {
       status: "complete",
       totalImported: importedCount,
-      recordsAdded,
-      recordsUpdated,
+      recordsAdded: recordsAdded || 0,
+      recordsUpdated: recordsUpdated || 0,
       totalSkipped: skippedOrders.size,
       missingProducts: missingProducts.size,
       incrementalUpdate,

inventory-server/scripts/import/products.js

@@ -13,40 +13,12 @@ const getImageUrls = (pid) => {
 };
 
 async function setupTemporaryTables(connection) {
-  await connection.query(`
-    CREATE TEMPORARY TABLE IF NOT EXISTS temp_categories (
-      cat_id INT PRIMARY KEY,
-      name VARCHAR(255)
-    ) ENGINE=InnoDB;
-    
-    CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_images (
-      pid INT,
-      iid INT,
-      image_type ENUM('thumbnail', '175', 'full'),
-      url VARCHAR(255),
-      PRIMARY KEY (pid, image_type)
-    ) ENGINE=InnoDB;
-    
-    CREATE TEMPORARY TABLE IF NOT EXISTS temp_inventory_status (
-      pid INT PRIMARY KEY,
-      stock_quantity INT,
-      pending_qty INT,
-      preorder_count INT,
-      notions_inv_count INT
-    ) ENGINE=InnoDB;
-    
-    CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_prices (
-      pid INT PRIMARY KEY,
-      price DECIMAL(10,2),
-      regular_price DECIMAL(10,2),
-      cost_price DECIMAL(10,5)
-    ) ENGINE=InnoDB;
-
-    INSERT INTO temp_categories
-    SELECT cat_id, name FROM categories;
-    
-    CREATE INDEX idx_temp_cat_id ON temp_categories(cat_id);
-  `);
+  await connection.query(`CREATE TEMPORARY TABLE IF NOT EXISTS temp_categories ( cat_id INT PRIMARY KEY, name VARCHAR(255) ) ENGINE=InnoDB;`);
+  await connection.query(`CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_images ( pid INT, iid INT, image_type ENUM('thumbnail', '175', 'full'), url VARCHAR(255), PRIMARY KEY (pid, image_type) ) ENGINE=InnoDB;`);
+  await connection.query(`CREATE TEMPORARY TABLE IF NOT EXISTS temp_inventory_status ( pid INT PRIMARY KEY, stock_quantity INT, pending_qty INT, preorder_count INT, notions_inv_count INT, needs_update BOOLEAN ) ENGINE=InnoDB;`);
+  await connection.query(`CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_prices ( pid INT PRIMARY KEY, price DECIMAL(10,2), regular_price DECIMAL(10,2), cost_price DECIMAL(10,5), needs_update BOOLEAN ) ENGINE=InnoDB;`);
+  await connection.query(`INSERT INTO temp_categories SELECT cat_id, name FROM categories;`);
+  await connection.query(`CREATE INDEX idx_temp_cat_id ON temp_categories(cat_id);`);
 }
 
 async function cleanupTemporaryTables(connection) {
@@ -108,18 +80,20 @@ async function materializeCalculations(prodConnection, localConnection) {
       Math.max(0, row.stock_quantity - row.pending_qty), // Calculate final stock quantity
       row.pending_qty,
       row.preorder_count,
-      row.notions_inv_count
+      row.notions_inv_count,
+      true  // Mark as needing update
     ]);
 
     if (values.length > 0) {
       await localConnection.query(`
-        INSERT INTO temp_inventory_status (pid, stock_quantity, pending_qty, preorder_count, notions_inv_count)
+        INSERT INTO temp_inventory_status (pid, stock_quantity, pending_qty, preorder_count, notions_inv_count, needs_update)
         VALUES ?
         ON DUPLICATE KEY UPDATE
           stock_quantity = VALUES(stock_quantity),
           pending_qty = VALUES(pending_qty),
           preorder_count = VALUES(preorder_count),
-          notions_inv_count = VALUES(notions_inv_count)
+          notions_inv_count = VALUES(notions_inv_count),
+          needs_update = TRUE
       `, [values]);
     }
 
@@ -168,17 +142,19 @@ async function materializeCalculations(prodConnection, localConnection) {
       row.pid,
       row.price,
       row.regular_price,
-      row.cost_price
+      row.cost_price,
+      true  // Mark as needing update
     ]);
 
     if (values.length > 0) {
       await localConnection.query(`
-        INSERT INTO temp_product_prices (pid, price, regular_price, cost_price)
+        INSERT INTO temp_product_prices (pid, price, regular_price, cost_price, needs_update)
         VALUES ?
         ON DUPLICATE KEY UPDATE
           price = VALUES(price),
           regular_price = VALUES(regular_price),
-          cost_price = VALUES(cost_price)
+          cost_price = VALUES(cost_price),
+          needs_update = TRUE
       `, [values]);
     }
 
@@ -200,6 +176,8 @@ async function materializeCalculations(prodConnection, localConnection) {
 
 async function importProducts(prodConnection, localConnection, incrementalUpdate = true) {
   const startTime = Date.now();
+  let recordsAdded = 0;
+  let recordsUpdated = 0;
 
   try {
     // Get column names first
@@ -216,6 +194,8 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
       "SELECT last_sync_timestamp FROM sync_status WHERE table_name = 'products'"
     );
     const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
+    
+    console.log('Products: Using last sync time:', lastSyncTime);
 
     // Setup temporary tables
     await setupTemporaryTables(localConnection);
@@ -227,23 +207,31 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
     const [countResult] = await prodConnection.query(`
       SELECT COUNT(*) as total
       FROM products p
-      WHERE p.stamp > ?
-      OR EXISTS (
-        SELECT 1 FROM product_last_sold pls 
-        WHERE p.pid = pls.pid 
-        AND pls.date_sold > ?
-      )
-      OR p.date_created > ?
-      OR p.datein > ?
-    `, [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime]);
+      LEFT JOIN current_inventory ci ON p.pid = ci.pid
+      LEFT JOIN product_current_prices pcp ON p.pid = pcp.pid AND pcp.active = 1
+      LEFT JOIN supplier_item_data sid ON p.pid = sid.pid
+      LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
+      LEFT JOIN product_last_sold pls ON p.pid = pls.pid
+      WHERE ${incrementalUpdate ? `
+        p.stamp > ? OR
+        ci.stamp > ? OR
+        pcp.date_deactive > ? OR
+        pcp.date_active > ? OR
+        sid.stamp > ? OR
+        pnb.date_updated > ? OR
+        pls.date_sold > ?
+      ` : 'TRUE'}
+    `, incrementalUpdate ? [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime] : []);
 
+    console.log('Products: Found changes:', countResult[0].total);
+    
     const totalProducts = countResult[0].total;
 
     // Main product query using materialized data - modified for incremental
     outputProgress({
       status: "running",
       operation: "Products import",
-      message: "Fetching product data from production"
+      message: `Fetching ${incrementalUpdate ? 'updated' : 'all'} product data from production`
     });
 
     // Create temporary table for production data
@@ -279,7 +267,7 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         country_of_origin VARCHAR(5),
         date_last_sold DATE,
         category_ids TEXT,
-        needs_update BOOLEAN DEFAULT FALSE,
+        needs_update BOOLEAN DEFAULT TRUE,
         PRIMARY KEY (pid)
       ) ENGINE=InnoDB
     `);
@@ -322,18 +310,7 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         p.totalsold AS total_sold,
         p.country_of_origin,
         pls.date_sold as date_last_sold,
-        GROUP_CONCAT(DISTINCT pci.cat_id) as category_ids,
-        CASE WHEN 
-          ${incrementalUpdate ? `
-            p.stamp > ? OR
-            ci.stamp > ? OR
-            pcp.date_deactive > ? OR
-            pcp.date_active > ? OR
-            sid.stamp > ? OR
-            pnb.date_updated > ? OR
-            pls.date_sold > ?
-          ` : 'TRUE'}
-        THEN 1 ELSE 0 END as needs_update
+        GROUP_CONCAT(DISTINCT pci.cat_id) as category_ids
       FROM products p
         LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
         LEFT JOIN supplier_item_data sid ON p.pid = sid.pid
@@ -347,17 +324,61 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         LEFT JOIN current_inventory ci ON p.pid = ci.pid
         LEFT JOIN product_current_prices pcp ON p.pid = pcp.pid AND pcp.active = 1
         LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
+      WHERE ${incrementalUpdate ? `
+        p.stamp > ? OR
+        ci.stamp > ? OR
+        pcp.date_deactive > ? OR
+        pcp.date_active > ? OR
+        sid.stamp > ? OR
+        pnb.date_updated > ? OR
+        pls.date_sold > ?
+      ` : 'TRUE'}
       GROUP BY p.pid
     `, incrementalUpdate ? [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime] : []);
 
     // Insert production data in batches, but only for products that need updates
     for (let i = 0; i < prodData.length; i += 1000) {
       const batch = prodData.slice(i, i + 1000);
-      const placeholders = batch.map(() => "(?)").join(",");
+      const placeholders = batch.map(() => `(${Array(31).fill("?").join(",")})`).join(",");
       
+      // Map each row to exactly match our temp table columns
+      const values = batch.flatMap(row => [
+        row.pid,
+        row.title,
+        row.description,
+        row.SKU,
+        row.date_created,
+        row.first_received,
+        row.location,
+        row.barcode,
+        row.harmonized_tariff_code,
+        row.updated_at,
+        row.visible,
+        row.replenishable,
+        row.vendor,
+        row.vendor_reference,
+        row.notions_reference,
+        row.brand,
+        row.line,
+        row.subline,
+        row.artist,
+        row.moq,
+        row.rating,
+        row.reviews,
+        row.weight,
+        row.length,
+        row.width,
+        row.height,
+        row.total_sold,
+        row.country_of_origin,
+        row.date_last_sold,
+        row.category_ids,
+        true  // needs_update
+      ]);
+
       await localConnection.query(`
         INSERT INTO temp_prod_data VALUES ${placeholders}
-      `, batch.map(row => Object.values(row)));
+      `, values);
 
       outputProgress({
         status: "running",
@@ -374,7 +395,18 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
     let recordsAdded = 0;
     let recordsUpdated = 0;
     
-    while (processed < totalProducts) {
+    // Get actual count from temp table - only count products that need updates
+    const [[{ actualTotal }]] = await localConnection.query(`
+      SELECT COUNT(DISTINCT p.pid) as actualTotal 
+      FROM temp_prod_data p
+      LEFT JOIN temp_inventory_status tis ON p.pid = tis.pid
+      LEFT JOIN temp_product_prices tpp ON p.pid = tpp.pid
+      WHERE p.needs_update = 1 
+         OR tis.needs_update = 1 
+         OR tpp.needs_update = 1
+    `);
+    
+    while (processed < actualTotal) {
       const [batch] = await localConnection.query(`
         SELECT 
           p.*,
@@ -387,9 +419,13 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         FROM temp_prod_data p
         LEFT JOIN temp_inventory_status tis ON p.pid = tis.pid
         LEFT JOIN temp_product_prices tpp ON p.pid = tpp.pid
-        WHERE p.needs_update = 1
+        WHERE p.needs_update = 1 
+           OR tis.needs_update = 1 
+           OR tpp.needs_update = 1
         LIMIT ? OFFSET ?
       `, [BATCH_SIZE, processed]);
+
+      if (!batch || batch.length === 0) break;  // Exit if no more records
       
       // Add image URLs
       batch.forEach(row => {
@@ -399,34 +435,94 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         row.image_full = urls.image_full;
       });
 
-      // Prepare product values - now using columnNames from above
-      const productValues = batch.flatMap(row => 
-        columnNames.map(col => {
-          const val = row[col] ?? null;
+      if (batch.length > 0) {
+        // MySQL 8.0 optimized insert with proper placeholders
+        const placeholderGroup = `(${Array(columnNames.length).fill("?").join(",")})`;
+
+        // First check which products already exist and get their current values
+        const [existingProducts] = await localConnection.query(
+          `SELECT ${columnNames.join(',')} FROM products WHERE pid IN (?)`,
+          [batch.map(p => p.pid)]
+        );
+        const existingPidsMap = new Map(existingProducts.map(p => [p.pid, p]));
+
+        // Helper function to map values consistently
+        const mapValues = (product) => columnNames.map(col => {
+          const val = product[col] ?? null;
           if (col === "managing_stock") return 1;
           if (typeof val === "number") return val || 0;
           return val;
-        })
-      );
+        });
 
-      // MySQL 8.0 optimized insert
-      const placeholderGroup = `(${Array(columnNames.length).fill("?").join(",")})`;
-      const productPlaceholders = Array(batch.length).fill(placeholderGroup).join(",");
-      
-      const insertQuery = `
-        INSERT INTO products (${columnNames.join(",")})
-        VALUES ${productPlaceholders}
-        AS new_products
-        ON DUPLICATE KEY UPDATE
-          ${columnNames
-            .filter(col => col !== "pid")
-            .map(col => `${col} = new_products.${col}`)
-            .join(",")};
-      `;
+        // Split into inserts and updates, comparing values for updates
+        const insertsAndUpdates = batch.reduce((acc, product) => {
+          if (existingPidsMap.has(product.pid)) {
+            const existing = existingPidsMap.get(product.pid);
+            // Check if any values are different
+            const hasChanges = columnNames.some(col => {
+              const newVal = product[col] ?? null;
+              const oldVal = existing[col] ?? null;
+              // Special handling for numbers to avoid type coercion issues
+              if (typeof newVal === 'number' && typeof oldVal === 'number') {
+                // Handle NaN and Infinity
+                if (isNaN(newVal) || isNaN(oldVal)) return isNaN(newVal) !== isNaN(oldVal);
+                if (!isFinite(newVal) || !isFinite(oldVal)) return !isFinite(newVal) !== !isFinite(oldVal);
+                // Allow for tiny floating point differences
+                return Math.abs(newVal - oldVal) > 0.00001;
+              }
+              if (col === 'managing_stock') return false; // Skip this as it's always 1
+              return newVal !== oldVal;
+            });
 
-      const result = await localConnection.query(insertQuery, productValues);
-      recordsAdded += result.affectedRows - result.changedRows;
-      recordsUpdated += result.changedRows;
+            if (hasChanges) {
+              acc.updates.push({
+                pid: product.pid,
+                values: mapValues(product)
+              });
+            }
+          } else {
+            acc.inserts.push({
+              pid: product.pid,
+              values: mapValues(product)
+            });
+          }
+          return acc;
+        }, { inserts: [], updates: [] });
+
+        // Log summary for this batch
+        if (insertsAndUpdates.inserts.length > 0 || insertsAndUpdates.updates.length > 0) {
+          console.log(`Batch summary: ${insertsAndUpdates.inserts.length} new products, ${insertsAndUpdates.updates.length} updates`);
+        }
+
+        // Handle inserts
+        if (insertsAndUpdates.inserts.length > 0) {
+          const insertPlaceholders = Array(insertsAndUpdates.inserts.length).fill(placeholderGroup).join(",");
+          
+          const insertResult = await localConnection.query(`
+            INSERT INTO products (${columnNames.join(",")})
+            VALUES ${insertPlaceholders}
+          `, insertsAndUpdates.inserts.map(i => i.values).flat());
+          
+          recordsAdded += insertResult[0].affectedRows;
+        }
+
+        // Handle updates - now we know these actually have changes
+        if (insertsAndUpdates.updates.length > 0) {
+          const updatePlaceholders = Array(insertsAndUpdates.updates.length).fill(placeholderGroup).join(",");
+          
+          const updateResult = await localConnection.query(`
+            INSERT INTO products (${columnNames.join(",")})
+            VALUES ${updatePlaceholders}
+            ON DUPLICATE KEY UPDATE
+              ${columnNames
+                .filter(col => col !== "pid")
+                .map(col => `${col} = VALUES(${col})`)
+                .join(",")};
+          `, insertsAndUpdates.updates.map(u => u.values).flat());
+          
+          recordsUpdated += insertsAndUpdates.updates.length;
+        }
+      }
 
       // Insert category relationships
       const categoryRelationships = [];
@@ -478,15 +574,16 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
         }
       }
 
-      processed += batch.length;
+      processed += batch.length;  // Only increment by actual records processed
+
       outputProgress({
         status: "running",
         operation: "Products import",
-        message: `Processed ${processed} of ${totalProducts} products`,
+        message: `Processed ${processed} of ${actualTotal} products`,
         current: processed,
-        total: totalProducts,
+        total: actualTotal,
         elapsed: formatElapsedTime((Date.now() - startTime) / 1000),
-        remaining: estimateRemaining(startTime, processed, totalProducts),
+        remaining: estimateRemaining(startTime, processed, actualTotal),
         rate: calculateRate(startTime, processed)
       });
 
@@ -508,10 +605,10 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
 
     return {
       status: "complete",
-      totalImported: totalProducts,
-      recordsAdded,
-      recordsUpdated,
-      incrementalUpdate: true,
+      totalImported: actualTotal,
+      recordsAdded: recordsAdded || 0,
+      recordsUpdated: recordsUpdated || 0,
+      incrementalUpdate,
       lastSyncTime
     };
   } catch (error) {
@@ -521,67 +618,16 @@ async function importProducts(prodConnection, localConnection, incrementalUpdate
 
 async function importMissingProducts(prodConnection, localConnection, missingPids) {
   try {
-    // Setup temporary tables
-    await setupTemporaryTables(localConnection);
-    
-    // Get inventory data from production first
-    const [prodInventory] = await prodConnection.query(`
-      SELECT 
-        p.pid,
-        COALESCE(si.available_local, 0) - COALESCE(ps.pending_qty, 0) as stock_quantity,
-        COALESCE(ps.pending_qty, 0) as pending_qty,
-        COALESCE(ci.onpreorder, 0) as preorder_count,
-        COALESCE(pnb.inventory, 0) as notions_inv_count
-      FROM products p
-      LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
-      LEFT JOIN current_inventory ci ON p.pid = ci.pid
-      LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
-      LEFT JOIN (
-        SELECT oi.prod_pid,
-          SUM(oi.qty_ordered - oi.qty_placed) as pending_qty
-        FROM order_items oi
-        JOIN _order o ON oi.order_id = o.order_id
-        WHERE oi.prod_pid IN (?)
-          AND o.date_placed != '0000-00-00 00:00:00'
-          AND o.date_shipped = '0000-00-00 00:00:00'
-          AND oi.pick_finished = 0
-          AND oi.qty_back = 0
-          AND o.order_status != 15
-          AND o.order_status < 90
-          AND oi.qty_ordered >= oi.qty_placed
-          AND oi.qty_ordered > 0
-        GROUP BY oi.prod_pid
-      ) ps ON p.pid = ps.prod_pid
-      WHERE p.pid IN (?)
-    `, [missingPids, missingPids]);
-
-    // Insert inventory data into temp table
-    if (prodInventory.length > 0) {
-      const placeholders = prodInventory.map(() => "(?, ?, ?, ?, ?)").join(",");
-      const values = prodInventory.flatMap(p => [
-        p.pid,
-        p.stock_quantity,
-        p.pending_qty,
-        p.preorder_count,
-        p.notions_inv_count
-      ]);
-
-      await localConnection.query(`
-        INSERT INTO temp_inventory_status VALUES ${placeholders}
-      `, values);
-    }
-
-    // First get the column names from the table structure
+    // Get column names first
     const [columns] = await localConnection.query(`
       SELECT COLUMN_NAME 
       FROM INFORMATION_SCHEMA.COLUMNS 
       WHERE TABLE_NAME = 'products'
       ORDER BY ORDINAL_POSITION
     `);
-
     const columnNames = columns.map((col) => col.COLUMN_NAME);
 
-    // Get the missing products from production
+    // Get the missing products with all their data in one optimized query
     const [products] = await prodConnection.query(`
       SELECT 
         p.pid,
@@ -591,9 +637,22 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
         p.date_created,
         p.datein AS first_received,
         p.location,
-        tis.stock_quantity,
-        tis.preorder_count,
-        tis.notions_inv_count,
+        COALESCE(si.available_local, 0) - COALESCE(
+          (SELECT SUM(oi.qty_ordered - oi.qty_placed)
+           FROM order_items oi
+           JOIN _order o ON oi.order_id = o.order_id
+           WHERE oi.prod_pid = p.pid
+             AND o.date_placed != '0000-00-00 00:00:00'
+             AND o.date_shipped = '0000-00-00 00:00:00'
+             AND oi.pick_finished = 0
+             AND oi.qty_back = 0
+             AND o.order_status != 15
+             AND o.order_status < 90
+             AND oi.qty_ordered >= oi.qty_placed
+             AND oi.qty_ordered > 0), 0
+        ) as stock_quantity,
+        COALESCE(ci.onpreorder, 0) as preorder_count,
+        COALESCE(pnb.inventory, 0) as notions_inv_count,
         COALESCE(pcp.price_each, 0) as price,
         COALESCE(p.sellingprice, 0) AS regular_price,
         COALESCE((SELECT ROUND(AVG(costeach), 5)
@@ -610,21 +669,6 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
         CASE WHEN s.companyname = 'Notions' THEN sid.notions_itemnumber ELSE sid.supplier_itemnumber END AS vendor_reference,
         sid.notions_itemnumber AS notions_reference,
         CONCAT('https://www.acherryontop.com/shop/product/', p.pid) AS permalink,
-        (SELECT CONCAT('https://sbing.com/i/products/0000/', 
-                      SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/', 
-                      p.pid, '-t-', MIN(PI.iid), '.jpg')
-         FROM product_images PI
-         WHERE PI.pid = p.pid AND PI.hidden = 0) AS image,
-        (SELECT CONCAT('https://sbing.com/i/products/0000/',
-                      SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/',
-                      p.pid, '-175x175-', MIN(PI.iid), '.jpg')
-         FROM product_images PI
-         WHERE PI.pid = p.pid AND PI.hidden = 0 AND PI.width = 175) AS image_175,
-        (SELECT CONCAT('https://sbing.com/i/products/0000/',
-                      SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/',
-                      p.pid, '-o-', MIN(PI.iid), '.jpg')
-         FROM product_images PI 
-         WHERE PI.pid = p.pid AND PI.hidden = 0) AS image_full,
         pc1.name AS brand,
         pc2.name AS line,
         pc3.name AS subline,
@@ -649,7 +693,6 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
         pls.date_sold as date_last_sold,
         GROUP_CONCAT(DISTINCT CASE WHEN pc.cat_id IS NOT NULL THEN pci.cat_id END) as category_ids
       FROM products p
-        LEFT JOIN temp_inventory_status tis ON p.pid = tis.pid
         LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
         LEFT JOIN supplier_item_data sid ON p.pid = sid.pid
         LEFT JOIN suppliers s ON sid.supplier_id = s.supplierid
@@ -662,16 +705,24 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
         LEFT JOIN product_categories pc3 ON p.subline = pc3.cat_id
         LEFT JOIN product_categories pc4 ON p.artist = pc4.cat_id
         LEFT JOIN product_last_sold pls ON p.pid = pls.pid
-        LEFT JOIN (
-          SELECT pid, MIN(price_each) as price_each
-          FROM product_current_prices
-          WHERE active = 1
-          GROUP BY pid
-        ) pcp ON p.pid = pcp.pid
+        LEFT JOIN current_inventory ci ON p.pid = ci.pid
+        LEFT JOIN product_current_prices pcp ON p.pid = pcp.pid AND pcp.active = 1
+        LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
       WHERE p.pid IN (?)
       GROUP BY p.pid
     `, [missingPids]);
 
+    // Add image URLs
+    products.forEach(product => {
+      const urls = getImageUrls(product.pid);
+      product.image = urls.image;
+      product.image_175 = urls.image_175;
+      product.image_full = urls.image_full;
+    });
+
+    let recordsAdded = 0;
+    let recordsUpdated = 0;
+
     if (products.length > 0) {
       // Map values in the same order as columns
       const productValues = products.flatMap(product => 
@@ -699,21 +750,13 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
       `;
 
       const result = await localConnection.query(query, productValues);
-      recordsAdded += result.affectedRows - result.changedRows;
-      recordsUpdated += result.changedRows;
-
-      // Verify products were inserted before proceeding with categories
-      const [insertedProducts] = await localConnection.query(
-        "SELECT pid FROM products WHERE pid IN (?)",
-        [products.map(p => p.pid)]
-      );
-      const insertedPids = new Set(insertedProducts.map(p => p.pid));
+      recordsAdded = result.affectedRows - result.changedRows;
+      recordsUpdated = result.changedRows;
 
       // Handle category relationships if any
       const categoryRelationships = [];
       products.forEach(product => {
-        // Only add category relationships for products that were successfully inserted
-        if (insertedPids.has(product.pid) && product.category_ids) {
+        if (product.category_ids) {
           const catIds = product.category_ids
             .split(",")
             .map(id => id.trim())
@@ -744,10 +787,8 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
             .map(() => "(?, ?)")
             .join(",");
           await localConnection.query(
-            `
-            INSERT IGNORE INTO product_categories (cat_id, pid)
-            VALUES ${catPlaceholders}
-            `,
+            `INSERT IGNORE INTO product_categories (cat_id, pid)
+             VALUES ${catPlaceholders}`,
             validRelationships.flat()
           );
         }
@@ -758,15 +799,10 @@ async function importMissingProducts(prodConnection, localConnection, missingPid
       status: "complete",
       totalImported: products.length,
       recordsAdded,
-      recordsUpdated,
-      incrementalUpdate: true,
-      lastSyncTime
+      recordsUpdated
     };
   } catch (error) {
     throw error;
-  } finally {
-    // Cleanup temporary tables
-    await cleanupTemporaryTables(localConnection);
   }
 }
 

inventory-server/scripts/import/purchase-orders.js

@@ -12,6 +12,22 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
     );
     const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
 
+    console.log('Purchase Orders: Using last sync time:', lastSyncTime);
+
+    // Insert temporary table creation query for purchase orders
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS temp_purchase_orders (
+        po_id INT UNSIGNED NOT NULL,
+        pid INT UNSIGNED NOT NULL,
+        vendor VARCHAR(255),
+        date DATE,
+        expected_date DATE,
+        status INT,
+        notes TEXT,
+        PRIMARY KEY (po_id, pid)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+    `);
+
     outputProgress({
       operation: `Starting ${incrementalUpdate ? 'incremental' : 'full'} purchase orders import`,
       status: "running",
@@ -82,6 +98,8 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime  // Receiving conditions
     ] : []);
 
+    console.log('Purchase Orders: Found changes:', total);
+
     const [poList] = await prodConnection.query(`
       SELECT DISTINCT 
         COALESCE(p.po_id, r.receiving_id) as po_id,
@@ -221,6 +239,22 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
         const values = [];
         let batchProcessed = 0;
 
+        // First check which PO lines already exist and get their current values
+        const poLines = Array.from(poProductMap.values())
+          .filter(p => validPids.has(p.pid))
+          .map(p => [p.po_id, p.pid]);
+
+        const [existingPOs] = await localConnection.query(
+          `SELECT ${columnNames.join(',')} FROM purchase_orders WHERE (po_id, pid) IN (${poLines.map(() => "(?,?)").join(",")})`,
+          poLines.flat()
+        );
+        const existingPOMap = new Map(
+          existingPOs.map(po => [`${po.po_id}-${po.pid}`, po])
+        );
+
+        // Split into inserts and updates
+        const insertsAndUpdates = { inserts: [], updates: [] };
+
         for (const po of batch) {
           const poProducts = Array.from(poProductMap.values())
             .filter(p => p.po_id === po.po_id && validPids.has(p.pid));
@@ -280,7 +314,7 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
             const firstReceiving = allReceivings[0] || {};
             const lastReceiving = allReceivings[allReceivings.length - 1] || {};
 
-            values.push(columnNames.map(col => {
+            const rowValues = columnNames.map(col => {
               switch (col) {
                 case 'po_id': return po.po_id;
                 case 'vendor': return po.vendor;
@@ -309,28 +343,75 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
                 });
                 default: return null;
               }
-            }));
+            });
+
+            if (existingPOMap.has(key)) {
+              const existing = existingPOMap.get(key);
+              // Check if any values are different
+              const hasChanges = columnNames.some(col => {
+                const newVal = rowValues[columnNames.indexOf(col)];
+                const oldVal = existing[col] ?? null;
+                // Special handling for numbers to avoid type coercion issues
+                if (typeof newVal === 'number' && typeof oldVal === 'number') {
+                  return Math.abs(newVal - oldVal) > 0.00001; // Allow for tiny floating point differences
+                }
+                // Special handling for receiving_history - parse and compare
+                if (col === 'receiving_history') {
+                  const newHistory = JSON.parse(newVal || '{}');
+                  const oldHistory = JSON.parse(oldVal || '{}');
+                  return JSON.stringify(newHistory) !== JSON.stringify(oldHistory);
+                }
+                return newVal !== oldVal;
+              });
+
+              if (hasChanges) {
+                insertsAndUpdates.updates.push({
+                  po_id: po.po_id,
+                  pid: product.pid,
+                  values: rowValues
+                });
+              }
+            } else {
+              insertsAndUpdates.inserts.push({
+                po_id: po.po_id,
+                pid: product.pid,
+                values: rowValues
+              });
+            }
             batchProcessed++;
           }
         }
 
-        if (values.length > 0) {
-          const placeholders = values.map(() => 
-            `(${Array(columnNames.length).fill("?").join(",")})`
-          ).join(",");
+        // Handle inserts
+        if (insertsAndUpdates.inserts.length > 0) {
+          const insertPlaceholders = insertsAndUpdates.inserts
+            .map(() => `(${Array(columnNames.length).fill("?").join(",")})`)
+            .join(",");
 
-          const query = `
+          const insertResult = await localConnection.query(`
             INSERT INTO purchase_orders (${columnNames.join(",")})
-            VALUES ${placeholders}
+            VALUES ${insertPlaceholders}
+          `, insertsAndUpdates.inserts.map(i => i.values).flat());
+
+          recordsAdded += insertResult[0].affectedRows;
+        }
+
+        // Handle updates - now we know these actually have changes
+        if (insertsAndUpdates.updates.length > 0) {
+          const updatePlaceholders = insertsAndUpdates.updates
+            .map(() => `(${Array(columnNames.length).fill("?").join(",")})`)
+            .join(",");
+
+          const updateResult = await localConnection.query(`
+            INSERT INTO purchase_orders (${columnNames.join(",")})
+            VALUES ${updatePlaceholders}
             ON DUPLICATE KEY UPDATE ${columnNames
               .filter((col) => col !== "po_id" && col !== "pid")
               .map((col) => `${col} = VALUES(${col})`)
               .join(",")};
-          `;
+          `, insertsAndUpdates.updates.map(u => u.values).flat());
 
-          const result = await localConnection.query(query, values.flat());
-          recordsAdded += result.affectedRows - result.changedRows;
-          recordsUpdated += result.changedRows;
+          recordsUpdated += updateResult[0].affectedRows / 2;  // Each update counts as 2 in affectedRows
         }
 
         processed += batchProcessed;
@@ -364,8 +445,8 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
     return {
       status: "complete",
       totalImported: totalItems,
-      recordsAdded,
-      recordsUpdated,
+      recordsAdded: recordsAdded || 0,
+      recordsUpdated: recordsUpdated || 0,
       incrementalUpdate,
       lastSyncTime
     };

inventory-server/scripts/import/purchase_orders.js

@@ -0,0 +1,82 @@
+// Split into inserts and updates
+const insertsAndUpdates = batch.reduce((acc, po) => {
+  const key = `${po.po_id}-${po.pid}`;
+  if (existingPOMap.has(key)) {
+    const existing = existingPOMap.get(key);
+    // Check if any values are different
+    const hasChanges = columnNames.some(col => {
+      const newVal = po[col] ?? null;
+      const oldVal = existing[col] ?? null;
+      // Special handling for numbers to avoid type coercion issues
+      if (typeof newVal === 'number' && typeof oldVal === 'number') {
+        return Math.abs(newVal - oldVal) > 0.00001; // Allow for tiny floating point differences
+      }
+      // Special handling for receiving_history JSON
+      if (col === 'receiving_history') {
+        return JSON.stringify(newVal) !== JSON.stringify(oldVal);
+      }
+      return newVal !== oldVal;
+    });
+
+    if (hasChanges) {
+      console.log(`PO line changed: ${key}`, {
+        po_id: po.po_id,
+        pid: po.pid,
+        changes: columnNames.filter(col => {
+          const newVal = po[col] ?? null;
+          const oldVal = existing[col] ?? null;
+          if (typeof newVal === 'number' && typeof oldVal === 'number') {
+            return Math.abs(newVal - oldVal) > 0.00001;
+          }
+          if (col === 'receiving_history') {
+            return JSON.stringify(newVal) !== JSON.stringify(oldVal);
+          }
+          return newVal !== oldVal;
+        })
+      });
+      acc.updates.push({
+        po_id: po.po_id,
+        pid: po.pid,
+        values: columnNames.map(col => po[col] ?? null)
+      });
+    }
+  } else {
+    console.log(`New PO line: ${key}`);
+    acc.inserts.push({
+      po_id: po.po_id,
+      pid: po.pid,
+      values: columnNames.map(col => po[col] ?? null)
+    });
+  }
+  return acc;
+}, { inserts: [], updates: [] });
+
+// Handle inserts
+if (insertsAndUpdates.inserts.length > 0) {
+  const insertPlaceholders = Array(insertsAndUpdates.inserts.length).fill(placeholderGroup).join(",");
+  
+  const insertResult = await localConnection.query(`
+    INSERT INTO purchase_orders (${columnNames.join(",")})
+    VALUES ${insertPlaceholders}
+  `, insertsAndUpdates.inserts.map(i => i.values).flat());
+  
+  recordsAdded += insertResult[0].affectedRows;
+}
+
+// Handle updates
+if (insertsAndUpdates.updates.length > 0) {
+  const updatePlaceholders = Array(insertsAndUpdates.updates.length).fill(placeholderGroup).join(",");
+  
+  const updateResult = await localConnection.query(`
+    INSERT INTO purchase_orders (${columnNames.join(",")})
+    VALUES ${updatePlaceholders}
+    ON DUPLICATE KEY UPDATE
+      ${columnNames
+        .filter(col => col !== "po_id" && col !== "pid")
+        .map(col => `${col} = VALUES(${col})`)
+        .join(",")};
+  `, insertsAndUpdates.updates.map(u => u.values).flat());
+  
+  // Each update affects 2 rows in affectedRows, so we divide by 2 to get actual count
+  recordsUpdated += insertsAndUpdates.updates.length;
+}