diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOACashController.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOACashController.java
index 976d12d0..a81763f2 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOACashController.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOACashController.java
@@ -58,6 +58,4 @@ public class BpmOACashController {
 
         return success(cashService.convertCash(cashDO));
     }
-
-
 }
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashCreateReqVO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashCreateReqVO.java
index d726e3df..f129e02a 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashCreateReqVO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashCreateReqVO.java
@@ -34,6 +34,9 @@ public class BpmOACashCreateReqVO {
     @Schema(description = "备用金申请编号")
     private Long imprestId;
 
+    @Schema(description = "备用金差额 = 备用金额 - 报销总金额")
+    private BigDecimal difference;
+
     @Schema(description = "流程实例编号")
     private String processInstanceId;
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashRespVO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashRespVO.java
index b1f5e63d..bb9ac6c2 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashRespVO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/vo/cash/BpmOACashRespVO.java
@@ -40,6 +40,9 @@ public class BpmOACashRespVO extends BpmOABaseRespVO {
     @Schema(description = "备用金申请编号")
     private Long imprestId;
 
+    @Schema(description = "备用金差额 = 备用金额 - 报销总金额")
+    private BigDecimal difference;
+
     @Schema(description = "备用金金额")
     private BigDecimal amount;
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/dataobject/oa/BpmOACashDO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/dataobject/oa/BpmOACashDO.java
index 10abe4bb..7b5b9d72 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/dataobject/oa/BpmOACashDO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/dataobject/oa/BpmOACashDO.java
@@ -55,6 +55,11 @@ public class BpmOACashDO extends BaseDO {
      */
     private Long imprestId;
 
+    /**
+     * 备用金差额 = 备用金额 - 报销总金额
+     */
+    private BigDecimal difference;
+
     /**
      * 用章的结果
      *
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOASalaryAdjustmentServiceImpl.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOASalaryAdjustmentServiceImpl.java
index 31447f06..cce56e79 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOASalaryAdjustmentServiceImpl.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOASalaryAdjustmentServiceImpl.java
@@ -12,8 +12,6 @@ import cn.iocoder.yudao.module.bpm.service.task.BpmHistoryProcessInstanceService
 import cn.iocoder.yudao.module.infra.api.config.ConfigApi;
 import cn.iocoder.yudao.module.system.api.dept.DeptApi;
 import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
-import io.netty.util.internal.StringUtil;
-import org.mapstruct.ap.internal.util.Strings;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
 
@@ -77,7 +75,7 @@ public class BpmOASalaryAdjustmentServiceImpl extends BpmOABaseService implement
 
         // 查询配置文件，获取行政部门编号
         String hrDeptId = configApi.getConfigKey("system_hr_dept").getCheckedData();
-        if (Strings.isNotEmpty(hrDeptId)) {
+        if (hrDeptId != null && !hrDeptId.isEmpty()) {
             processInstanceVariables.put("hr_dept", hrDeptId);
         }
         // 发起 BPM 流程