diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
index db94c665..84ee99ce 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
@@ -282,6 +282,8 @@ public class KingdeeApBillSyncSupport {
 		param.setCurrencyNumber(currency);
 		// 【必填】付款组织.编码
 		param.setPayorgNumber(orgNumber);
+		// 部门.编码：项目业务部门自身的金蝶编码（结算/付款组织仍传上溯平台公司编码，口径与付款申请 A103-3 一致）
+		param.setDepartmentNumber(this.kingdeeDeptNumber(contract.getProjectId(), context));
 		// 采购组织.编码（非必传）
 		// param.setPurorgNumber(orgNumber);
 		// 【必填】款项性质.编码
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
index 64a3a99a..f9e214c1 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
@@ -218,6 +218,8 @@ public class KingdeeArBillSyncSupport {
 		param.setOrgNumber(orgNumber);
 		// 收款组织.编码：同结算组织
 		param.setRecorgNumber(orgNumber);
+		// 部门.编码：项目业务部门自身的金蝶编码（结算/收款组织仍传上溯平台公司编码，口径与付款申请/应付单一致）
+		param.setDepartmentNumber(kingdeeApBillSyncSupport.kingdeeDeptNumber(contract.getProjectId(), context));
 		// 【必填】单据日期
 		param.setBizdate(billDateText);
 		// 【必填】往来类型：统一固定客户（KingdeeApBillSyncSupport#bfiAsstactType，与应付单/付款申请同口径）