diff --git a/win-module-eam/win-module-eam-api/src/main/java/com/win/module/eam/enums/ErrorCodeConstants.java b/win-module-eam/win-module-eam-api/src/main/java/com/win/module/eam/enums/ErrorCodeConstants.java
index 770ac9c..f3d7898 100644
--- a/win-module-eam/win-module-eam-api/src/main/java/com/win/module/eam/enums/ErrorCodeConstants.java
+++ b/win-module-eam/win-module-eam-api/src/main/java/com/win/module/eam/enums/ErrorCodeConstants.java
@@ -116,6 +116,7 @@ public interface ErrorCodeConstants {
     ErrorCode MAINTAIN_BACK_NOT_EXISTS = new ErrorCode(1_000_020_042, "设备保养变更记录不存在");
     ErrorCode LOCATION_CAN_NOT_DELETE = new ErrorCode(1_000_020_043, "该库区已经存在于其他库位,不允许删除");
     ErrorCode LOCATION_CAN_NOT_REPLACE = new ErrorCode(1_000_020_043, "该备件编号已存在于其他库位中！");
+    ErrorCode ITEM_REPLACE = new ErrorCode(1_000_020_043, "该备件编号已存在");
 
     ErrorCode DEVICE_NO_EXISTS = new ErrorCode(1_000_020_044, "该设备不存在");
     ErrorCode DEVICE_TYPE_NO_NORMAL = new ErrorCode(1_000_020_045, "该设备与类型不符");
diff --git a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/controller/item/vo/ItemBaseVO.java b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/controller/item/vo/ItemBaseVO.java
index a4a4969..f113d73 100644
--- a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/controller/item/vo/ItemBaseVO.java
+++ b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/controller/item/vo/ItemBaseVO.java
@@ -43,6 +43,7 @@ public class ItemBaseVO {
     private Integer procurementCycle;
 
     @Schema(description = "ABC分类")
+    @NotNull(message = "ABC分类不能为空")
     private String classification;
 
     @Schema(description = "使用地点")
diff --git a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/dal/mysql/itemaccounts/ItemAccountsMapper.java b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/dal/mysql/itemaccounts/ItemAccountsMapper.java
index 91aa7e0..3c5c355 100644
--- a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/dal/mysql/itemaccounts/ItemAccountsMapper.java
+++ b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/dal/mysql/itemaccounts/ItemAccountsMapper.java
@@ -114,7 +114,7 @@ public interface ItemAccountsMapper extends BaseMapperX<ItemAccountsDO> {
                             }
                         }
                         if (inQty.compareTo(BigDecimal.ZERO) == 0) {//账内库存不存在
-                            if (inQty.compareTo(BigDecimal.ZERO) > 0 && inQty.compareTo(subtractOutQty) >= 0) {//新到货存在且足够差额
+                            if (newQty.compareTo(BigDecimal.ZERO) > 0 && newQty.compareTo(subtractOutQty) >= 0) {//新到货存在且足够差额
                                 BigDecimal subtractNewQty = newQty.subtract(subtractOutQty);//减去之后的数量
                                 newLocation.setQty(subtractNewQty);
                                 result = this.updateById(newLocation);
diff --git a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/item/ItemServiceImpl.java b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/item/ItemServiceImpl.java
index a901342..9e3a1ba 100644
--- a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/item/ItemServiceImpl.java
+++ b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/item/ItemServiceImpl.java
@@ -14,6 +14,7 @@ import com.win.module.eam.dal.dataobject.item.ItemDO;
 import com.win.module.eam.dal.dataobject.itemaccounts.ItemAccountsDO;
 import com.win.module.eam.dal.dataobject.itemorder.ItemOrderDetailDO;
 import com.win.module.eam.dal.dataobject.itemorder.ItemOrderMainDO;
+import com.win.module.eam.dal.dataobject.locationarea.LocationAreaDO;
 import com.win.module.eam.dal.mysql.item.ItemMapper;
 import com.win.module.eam.dal.mysql.itemaccounts.ItemAccountsMapper;
 import com.win.module.eam.dal.mysql.itemorder.ItemOrderDetailMapper;
@@ -67,8 +68,15 @@ public class ItemServiceImpl implements ItemService {
     public Long createItem(ItemCreateReqVO createReqVO) {
         // 插入
         ItemDO item = ItemConvert.INSTANCE.convert(createReqVO);
-        String number = serialNumberApi.generateCode(RuleCodeEnum.Item.getCode());
-        item.setNumber(number);
+        //String number = serialNumberApi.generateCode(RuleCodeEnum.Item.getCode());
+        //item.setNumber(number);
+        QueryWrapper<ItemDO> objectQueryWrapper = new QueryWrapper<>();
+        objectQueryWrapper.eq("number", createReqVO.getNumber().trim());
+        objectQueryWrapper.eq("deleted", 0);
+        List<ItemDO> itemDOS = itemMapper.selectList(objectQueryWrapper);
+        if (itemDOS.size() > 0) {
+            throw exception(ITEM_REPLACE);
+        }
         item.setCreateTime(LocalDateTime.now());
         //是否全局，备件没匹配设备时，默认是全局的
         itemMapper.insert(item);
@@ -80,6 +88,14 @@ public class ItemServiceImpl implements ItemService {
     public Integer updateItem(ItemUpdateReqVO updateReqVO) {
         // 校验存在
         validateItemExists(updateReqVO.getId());
+        QueryWrapper<ItemDO> objectQueryWrapper = new QueryWrapper<>();
+        objectQueryWrapper.eq("number", updateReqVO.getNumber().trim());
+        objectQueryWrapper.eq("deleted", 0);
+        objectQueryWrapper.ne("id", updateReqVO.getId());
+        List<ItemDO> itemDOS = itemMapper.selectList(objectQueryWrapper);
+        if (itemDOS.size() > 0) {
+            throw exception(ITEM_REPLACE);
+        }
         // 更新
         ItemDO updateObj = ItemConvert.INSTANCE.convert(updateReqVO);
         return itemMapper.updateById(updateObj);
diff --git a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/location/LocationServiceImpl.java b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/location/LocationServiceImpl.java
index c736499..90f8d8f 100644
--- a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/location/LocationServiceImpl.java
+++ b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/location/LocationServiceImpl.java
@@ -56,7 +56,7 @@ public class LocationServiceImpl implements LocationService {
         // 插入
         LocationDO location = LocationConvert.INSTANCE.convert(createReqVO);
         QueryWrapper<LocationDO> objectQueryWrapper = new QueryWrapper<>();
-        objectQueryWrapper.eq("number", createReqVO.getNumber());
+        objectQueryWrapper.eq("number", createReqVO.getNumber().trim());
         objectQueryWrapper.eq("deleted", 0);
         List<LocationDO> locationDOList = locationMapper.selectList(objectQueryWrapper);
         if (locationDOList.size() > 0) {
@@ -73,6 +73,14 @@ public class LocationServiceImpl implements LocationService {
         // 校验存在
         validateLocationExists(updateReqVO.getId());
         // 更新
+        QueryWrapper<LocationDO> objectQueryWrapper = new QueryWrapper<>();
+        objectQueryWrapper.eq("number", updateReqVO.getNumber().trim());
+        objectQueryWrapper.eq("deleted", 0);
+        objectQueryWrapper.ne("id", updateReqVO.getId());
+        List<LocationDO> locationDOList = locationMapper.selectList(objectQueryWrapper);
+        if (locationDOList.size() > 0) {
+            throw ServiceExceptionUtil.exception(LOCATION_HAVE_EXISTS);
+        }
         LocationDO updateObj = LocationConvert.INSTANCE.convert(updateReqVO);
         return locationMapper.updateById(updateObj);
     }
diff --git a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/locationarea/LocationAreaServiceImpl.java b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/locationarea/LocationAreaServiceImpl.java
index 4de9e36..b6f70c9 100644
--- a/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/locationarea/LocationAreaServiceImpl.java
+++ b/win-module-eam/win-module-eam-biz/src/main/java/com/win/module/eam/service/locationarea/LocationAreaServiceImpl.java
@@ -50,7 +50,7 @@ public class LocationAreaServiceImpl implements LocationAreaService {
         // 插入
         LocationAreaDO locationArea = LocationAreaConvert.INSTANCE.convert(createReqVO);
         QueryWrapper<LocationAreaDO> objectQueryWrapper = new QueryWrapper<>();
-        objectQueryWrapper.eq("number", createReqVO.getNumber());
+        objectQueryWrapper.eq("number", createReqVO.getNumber().trim());
         objectQueryWrapper.eq("deleted", 0);
         List<LocationAreaDO> locationAreaList = locationAreaMapper.selectList(objectQueryWrapper);
         if (locationAreaList.size() > 0) {
@@ -67,6 +67,14 @@ public class LocationAreaServiceImpl implements LocationAreaService {
         // 校验存在
         //validateLocationAreaExists(updateReqVO.getId());
         // 更新
+        QueryWrapper<LocationAreaDO> objectQueryWrapper = new QueryWrapper<>();
+        objectQueryWrapper.eq("number", updateReqVO.getNumber().trim());
+        objectQueryWrapper.eq("deleted", 0);
+        objectQueryWrapper.ne("id", updateReqVO.getId());
+        List<LocationAreaDO> locationAreaList = locationAreaMapper.selectList(objectQueryWrapper);
+        if (locationAreaList.size() > 0) {
+            throw exception(LOCATION_AREA_HAVE_EXISTS);
+        }
         LocationAreaDO updateObj = LocationAreaConvert.INSTANCE.convert(updateReqVO);
         return locationAreaMapper.updateById(updateObj);
     }