diff --git a/apps/backend/src/services/fulfillment/routing-config-service.test.ts b/apps/backend/src/services/fulfillment/routing-config-service.test.ts
index c83c1a4b..9fd16087 100644
--- a/apps/backend/src/services/fulfillment/routing-config-service.test.ts
+++ b/apps/backend/src/services/fulfillment/routing-config-service.test.ts
@@ -6,6 +6,18 @@ import {
   resolveFulfillmentRoute,
 } from './routing-config-service.js'
 
+test('normalizeFulfillmentRoutingConfig adds channels missing from historical priority configs', () => {
+  const config = normalizeFulfillmentRoutingConfig({
+    defaultExecutorPriority: ['kuaishou_ct_assisted', 'kuaishou_feifei'],
+  })
+
+  assert.deepEqual(config.defaultExecutorPriority, [
+    'kuaishou_ct_assisted',
+    'kuaishou_feifei',
+    'affiliate_dash',
+  ])
+})
+
 test('resolveFulfillmentRoute 总开关关闭后不再回退默认配置，返回未选中', () => {
   const result = resolveFulfillmentRoute({
     productName: '测试商品',
diff --git a/apps/backend/src/services/fulfillment/routing-config-service.ts b/apps/backend/src/services/fulfillment/routing-config-service.ts
index c6cedde2..ba956b4a 100644
--- a/apps/backend/src/services/fulfillment/routing-config-service.ts
+++ b/apps/backend/src/services/fulfillment/routing-config-service.ts
@@ -440,6 +440,14 @@ function normalizeExecutorPriority(value: unknown) {
     items.push(executorKey)
   }
 
+  // 历史配置不会自动拥有后来新增的履约通道；补全默认通道，开关仍由 executors 控制。
+  for (const executorKey of DEFAULT_EXECUTOR_PRIORITY) {
+    if (!seen.has(executorKey)) {
+      seen.add(executorKey)
+      items.push(executorKey)
+    }
+  }
+
   return items
 }