diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/combination/CombinationRecordServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/combination/CombinationRecordServiceImpl.java
index 6f5ac3f62..bdf2d3398 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/combination/CombinationRecordServiceImpl.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/combination/CombinationRecordServiceImpl.java
@@ -131,7 +131,7 @@ public class CombinationRecordServiceImpl implements CombinationRecordService {
             throw exception(COMBINATION_JOIN_ACTIVITY_PRODUCT_NOT_EXISTS);
         }
         // 4.3 校验库存是否充足
-        if (count > sku.getStock()) {
+        if (count >= sku.getStock()) {
             throw exception(COMBINATION_ACTIVITY_UPDATE_STOCK_FAIL);
         }
 
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/point/PointActivityServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/point/PointActivityServiceImpl.java
index 8e88c5026..21e9ce233 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/point/PointActivityServiceImpl.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/point/PointActivityServiceImpl.java
@@ -300,7 +300,7 @@ public class PointActivityServiceImpl implements PointActivityService {
             throw exception(POINT_ACTIVITY_JOIN_ACTIVITY_SINGLE_LIMIT_COUNT_EXCEED);
         }
         // 2.2 校验库存是否充足
-        if (count > product.getStock()) {
+        if (count >= product.getStock()) {
             throw exception(POINT_ACTIVITY_UPDATE_STOCK_FAIL);
         }
         return BeanUtils.toBean(product, PointValidateJoinRespDTO.class);
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
index dcc5596f2..7e6c31571 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
@@ -317,7 +317,7 @@ public class SeckillActivityServiceImpl implements SeckillActivityService {
             throw exception(SECKILL_JOIN_ACTIVITY_PRODUCT_NOT_EXISTS);
         }
         // 2.2 校验库存是否充足
-        if (count > product.getStock()) {
+        if (count >= product.getStock()) {
             throw exception(SECKILL_ACTIVITY_UPDATE_STOCK_FAIL);
         }
         return SeckillActivityConvert.INSTANCE.convert02(activity, product);