diff --git a/inventory-web/src/views/outbound/Selection.vue b/inventory-web/src/views/outbound/Selection.vue
index 65c0b77..706c739 100644
--- a/inventory-web/src/views/outbound/Selection.vue
+++ b/inventory-web/src/views/outbound/Selection.vue
@@ -451,6 +451,31 @@ const getTypeTag = (type: string) => {
   }
 }
 
+// --- 核心逻辑 0：加载全量库存数据（BOM 齐套计算依赖此数据） ---
+const ensureAllStockLoaded = async () => {
+  if (allStockData.value.length === 0) {
+    try {
+      const res: any = await getAllStock()
+      const rawMaterials = (res.materials || []).map((i: any) => ({ ...i, type: 'material', typeLabel: '采购件' }))
+      const rawSemis = (res.semis || []).map((i: any) => ({ ...i, type: 'semi', typeLabel: '半成品' }))
+      const rawProducts = (res.products || []).map((i: any) => ({ ...i, type: 'product', typeLabel: '成品' }))
+      const list = [...rawMaterials, ...rawSemis, ...rawProducts]
+      allStockData.value = list.map((i: any) => ({
+        ...i,
+        name: i.name || i.material_name || i.product_name || '未知名称',
+        standard: i.standard || i.spec_model || '',
+        warehouse_location: i.warehouse_location || i.warehouse_loc || i.full_path || '',
+        uniqueKey: `${i.type}_${i.id}`,
+        available_quantity: parseFloat(i.available_quantity) || 0,
+        availableCount: parseFloat(i.available_quantity) || 0,
+        export_quantity: 1
+      }))
+    } catch (e) {
+      ElMessage.error('加载全量库存数据失败（BOM 功能可能受影响）')
+    }
+  }
+}
+
 // --- 核心逻辑 1：手动添加库存 ---
 
 // 服务端加载库存列表
@@ -482,31 +507,8 @@ const openManualSelect = async () => {
   stockPage.value = 1
   searchKeyword.value = ''
   await loadStockList()
-
-  // 仅在 BOM 关联查询需要时加载全量（一次性缓存）
-  if (allStockData.value.length === 0) {
-    try {
-      const res: any = await getAllStock()
-      const rawMaterials = (res.materials || []).map((i: any) => ({ ...i, type: 'material', typeLabel: '采购件' }))
-      const rawSemis = (res.semis || []).map((i: any) => ({ ...i, type: 'semi', typeLabel: '半成品' }))
-      const rawProducts = (res.products || []).map((i: any) => ({ ...i, type: 'product', typeLabel: '成品' }))
-      const list = [...rawMaterials, ...rawSemis, ...rawProducts]
-      allStockData.value = list.map((i: any) => ({
-        ...i,
-        name: i.name || i.material_name || i.product_name || '未知名称',
-        standard: i.standard || i.spec_model || '',
-        warehouse_location: i.warehouse_location || i.warehouse_loc || i.full_path || '',
-        uniqueKey: `${i.type}_${i.id}`,
-        available_quantity: parseFloat(i.available_quantity) || 0,
-        availableCount: parseFloat(i.available_quantity) || 0,
-        export_quantity: 1
-      }))
-    } catch (e) {
-      ElMessage.error('加载全量库存数据失败（BOM 功能可能受影响）')
-    }
-  } else {
-    allStockData.value.forEach(item => item.export_quantity = 0)
-  }
+  await ensureAllStockLoaded()
+  allStockData.value.forEach(item => item.export_quantity = 0)
 }
 
 // 搜索框防抖触发服务端过滤
@@ -611,6 +613,7 @@ const openBomSelect = async () => {
   } catch (e) {
     ElMessage.error('加载 BOM 列表失败')
   }
+  await ensureAllStockLoaded()
 }
 
 // 监听 BOM 选择变化，自动加载明细并计算齐套性