diff --git a/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/app/impl/PayAppServiceImpl.java b/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/app/impl/PayAppServiceImpl.java
index 86d6a32f8..4945a82b5 100644
--- a/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/app/impl/PayAppServiceImpl.java
+++ b/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/app/impl/PayAppServiceImpl.java
@@ -61,6 +61,7 @@ public class PayAppServiceImpl implements PayAppService {
     public void deleteApp(Long id) {
         // 校验存在
         this.validateAppExists(id);
+        // TODO aquan：校验是否存在进行中的支付单、退款单，如果是，则不允许删除。
         // 删除
         appMapper.deleteById(id);
     }
diff --git a/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/merchant/impl/PayMerchantServiceImpl.java b/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/merchant/impl/PayMerchantServiceImpl.java
index 932cbdfbd..9f2085854 100644
--- a/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/merchant/impl/PayMerchantServiceImpl.java
+++ b/yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/pay/service/merchant/impl/PayMerchantServiceImpl.java
@@ -57,6 +57,7 @@ public class PayMerchantServiceImpl implements PayMerchantService {
     public void deleteMerchant(Long id) {
         // 校验存在
         this.validateMerchantExists(id);
+        // TODO @aquan：需要校验 PayApp 是否都在。如果在的情况下，不允许删除
         // 删除
         merchantMapper.deleteById(id);
     }