diff --git a/backend/src/services/mkhBomService.js b/backend/src/services/mkhBomService.js
index 8c65c40..eda345c 100644
--- a/backend/src/services/mkhBomService.js
+++ b/backend/src/services/mkhBomService.js
@@ -2020,7 +2020,8 @@ function matchesPackSku(componentCode, packSkuCode) {
 function formatPackLocation(row) {
   const warehouseName = toText(row.warehouseName);
   const warehouseId = toText(row.warehouseId);
-  // 仓库优先显示名称（wh_id → jst_warehouseInfo.Id → name），取不到时退回 id
+  // 仓库优先显示名称（wms_co_id → jst_warehouseInfo.wms_co_id → name），取不到时退回 id。
+  // ⚠️ 关联列是 wms_co_id 不是 wh_id，见文件头 ⑤（09-19 修正）
   const warehouse = warehouseName || (warehouseId ? `仓库 ${warehouseId}` : '');
   const binGroup = toText(row.binGroup);
   const bin = toText(row.bin);
@@ -2099,15 +2100,15 @@ async function loadComponentLocations(codes = []) {
       const rows = await cloudDatabase.query(
         `SELECT p.sku_id    AS skuId,
                 p.pack_id   AS packId,
-                p.wh_id     AS warehouseId,
+                p.wms_co_id AS warehouseId,
                 p.bin       AS bin,
                 p.bin_group AS binGroup,
                 w.name      AS warehouseName,
                 SUM(p.qty)  AS qty
          FROM rpt.jst_packInventoryInfo p WITH (NOLOCK)
-         LEFT JOIN rpt.jst_warehouseInfo w WITH (NOLOCK) ON w.Id = p.wh_id
+         LEFT JOIN rpt.jst_warehouseInfo w WITH (NOLOCK) ON w.wms_co_id = p.wms_co_id
          WHERE ${conditions.join(' OR ')}
-         GROUP BY p.sku_id, p.pack_id, p.wh_id, p.bin, p.bin_group, w.name
+         GROUP BY p.sku_id, p.pack_id, p.wms_co_id, p.bin, p.bin_group, w.name
          HAVING SUM(p.qty) > 0`,
         params,
         { requestTimeout: 120000 }
diff --git a/backend/src/services/modularStockMonitorService.js b/backend/src/services/modularStockMonitorService.js
index c99abae..1718467 100644
--- a/backend/src/services/modularStockMonitorService.js
+++ b/backend/src/services/modularStockMonitorService.js
@@ -117,7 +117,9 @@ const buildWarningOrderSql = () => (
  * 统一的「仓位」表达式（2026-09-18 改源）。
  *   旧源 `jst_sku.bin / other_bin` 在目标仓 794 行**恒为空**（页面因此长期显示「未维护」）；
  *   真货位在 `rpt.jst_packInventoryInfo.bin` —— 该表 2026-09-18 10:48 被上游刷新后，
- *   目标仓 794 个 SKU **命中 727 个**（实测），如 ZT-8 / BCP01-01-1。
+ *   目标仓 794 个 SKU **命中 727 个**（09-19 实测；该表小时级增量刷新，命中数会变）。
+ *   ⚠️ 只取 bin，**不 join 仓名**，所以不受该表 wh_id / wms_co_id 关联列问题影响（见
+ *      mkhBomService 文件头 ⑤；那个坑只影响 MKH-BOM 页配件仓位列的仓名文本）。
  *   · 只取 `qty > 0` 的箱，同 SKU 多箱时取库存最大的那个（列表页只展示主货位）
  *   · 取不到才回退商品档案的 bin / other_bin（目前仍全空，保留兜底不影响结果）
  *   与 MKH-BOM 页 `mkhBomService.loadComponentLocations()` 同源，区别只在本页取单个主货位。
diff --git a/backend/test/mkhBomService.test.js b/backend/test/mkhBomService.test.js
index daa0076..5fe2b89 100644
--- a/backend/test/mkhBomService.test.js
+++ b/backend/test/mkhBomService.test.js
@@ -1017,8 +1017,8 @@ test('pack inventory location prefers the warehouse name and keeps the box fallb
   const locations = _private.buildPackLocationMap([
     {
       skuId: 'PART-1-1',
-      warehouseId: 1,
-      warehouseName: '常州简尚家居有限公司',
+      warehouseId: 15718196,
+      warehouseName: '简尚-崔桥工厂半成品包装项目仓',
       binGroup: null,
       bin: '',
       packId: 'BOX-1',
@@ -1026,8 +1026,8 @@ test('pack inventory location prefers the warehouse name and keeps the box fallb
     },
     {
       skuId: 'PART-1-2',
-      warehouseId: 1,
-      warehouseName: '常州简尚家居有限公司',
+      warehouseId: 15718196,
+      warehouseName: '简尚-崔桥工厂半成品包装项目仓',
       binGroup: '成品区',
       bin: 'A-01',
       packId: 'BOX-2',
@@ -1037,7 +1037,7 @@ test('pack inventory location prefers the warehouse name and keeps the box fallb
 
   assert.equal(
     locations.get('PART-1'),
-    '常州简尚家居有限公司 · 箱号 BOX-1、常州简尚家居有限公司 · 成品区 / A-01'
+    '简尚-崔桥工厂半成品包装项目仓 · 箱号 BOX-1、简尚-崔桥工厂半成品包装项目仓 · 成品区 / A-01'
   );
 });