diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
index ab2d6bad..3808240a 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
@@ -38,8 +38,6 @@ import org.springblade.core.secure.utils.AuthUtil;
 import org.springblade.core.tool.jackson.JsonUtil;
 import org.springblade.core.tool.utils.BeanUtil;
 import org.springblade.core.tool.utils.Func;
-import org.springblade.system.cache.SysCache;
-import org.springblade.system.pojo.entity.Dept;
 import org.springblade.thirdparty.bfi.pojo.dto.BfiInvoiceApplyOpenApiQueryDTO;
 import org.springblade.thirdparty.bfi.pojo.dto.BfiInvoiceApplyQueryDTO;
 import org.springblade.thirdparty.bfi.pojo.dto.BfiInvoiceApplySaveDTO;
@@ -803,12 +801,10 @@ public class InvoiceApplicationServiceImpl extends BaseServiceImpl<InvoiceApplic
 		}
 		if (Func.isBlank(entity.getDepartmentEmails())) throw new ServiceException("推送金蝶开票申请失败：部门邮箱（发票推送邮箱）不能为空");
 		if (Func.isBlank(entity.getTaxpayerNo())) throw new ServiceException("推送金蝶开票申请失败：购方纳税人识别号不能为空");
-		Dept dept = entity.getDeptId() == null ? null : SysCache.getDept(entity.getDeptId());
-		if (dept == null || Func.isBlank(dept.getKingdeeDeptCode())) {
-			throw new ServiceException("推送金蝶开票申请失败：申请部门[" + Func.toStr(entity.getDeptId()) + "]未维护金蝶组织编码，请检查部门数据");
-		}
-		// 金蝶组织编码：项目业务部门反查唯一平台公司 → 平台公司金蝶组织编码
-		String kingdeeOrgNumber = kingdeeApBillSyncSupport.kingdeeOrgNumber(entity.getProjectId(), KingdeeSyncContext.empty());
+		// 金蝶组织编码：项目业务部门反查唯一平台公司 → 平台公司金蝶组织编码；申请部门编码：项目业务部门自身金蝶编码（与付款申请单部门.编码同源，共用上下文缓存）
+		KingdeeSyncContext kingdeeContext = KingdeeSyncContext.empty();
+		String kingdeeOrgNumber = kingdeeApBillSyncSupport.kingdeeOrgNumber(entity.getProjectId(), kingdeeContext);
+		String kingdeeDeptNumber = kingdeeApBillSyncSupport.kingdeeDeptNumber(entity.getProjectId(), kingdeeContext);
 		CustomerArchive customer = entity.getReceiverCustomerId() == null ? null : customerArchiveMapper.selectById(entity.getReceiverCustomerId());
 		if (customer == null || Func.isBlank(customer.getCustomerCode())) {
 			throw new ServiceException("推送金蝶开票申请失败：受票方客户未在客商档案中维护客商编码，请补充后重试");
@@ -839,7 +835,7 @@ public class InvoiceApplicationServiceImpl extends BaseServiceImpl<InvoiceApplic
 					+ "]无商品行，无法组装分录");
 			}
 			BfiInvoiceApplySaveDTO param = this.buildInvoiceApplyParam(entity, sheetBillNo, seller, salerAddr, salerBank,
-				dept, kingdeeOrgNumber, customer, firstArSrcCode, money(sheet.getInvoiceAmount()), items);
+				kingdeeDeptNumber, kingdeeOrgNumber, customer, firstArSrcCode, money(sheet.getInvoiceAmount()), items);
 			log.info("金蝶开票申请推送：开票申请[{}]发票张[{}]，billno=[{}]，价税合计=[{}]，分录{}条",
 				entity.getApplicationNo(), sheet.getSheetNo(), sheetBillNo, sheet.getInvoiceAmount(), items.size());
 			BfiBillSaveResultVO saveResult = bfiService.saveInvoiceApply(param);
@@ -892,14 +888,14 @@ public class InvoiceApplicationServiceImpl extends BaseServiceImpl<InvoiceApplic
 	 * @param firstArSrcCode 上游来源单据号：首张关联结算单的金蝶应收单防重键 awrp_src_code（多张结算单取第一张）
 	 */
 	private BfiInvoiceApplySaveDTO buildInvoiceApplyParam(InvoiceApplication entity, String billNo,
-		CustomerArchive seller, String salerAddr, String salerBank, Dept dept, String orgNumber, CustomerArchive customer,
+		CustomerArchive seller, String salerAddr, String salerBank, String deptNumber, String orgNumber, CustomerArchive customer,
 		String firstArSrcCode, BigDecimal sheetAmount, List<BfiInvoiceApplySaveEntryDTO> items) {
 		BfiInvoiceApplySaveDTO param = new BfiInvoiceApplySaveDTO();
 		// ==================== 以下为【必填】字段（BfiInvoiceApplySaveDTO 标注），非必填字段先注释保留 ====================
 		// 【必填】组织.编码：项目业务部门反查唯一平台公司 → 平台公司金蝶组织编码
 		param.setOrgidNumber(orgNumber);
-		// 【必填】申请部门.编码：申请部门 deptId → 金蝶部门编码
-		param.setAwrpOrgfieldNumber(dept.getKingdeeDeptCode());
+		// 【必填】申请部门.编码：项目业务部门金蝶编码（与付款申请单 awrp_department_number 同源）
+		param.setAwrpOrgfieldNumber(deptNumber);
 		// 【必填】业务单据编号（候选键）：单张发票候选 billno（多张发票时开票申请单号-张次序号）
 		param.setBillno(billNo);
 		// 【必填】单据日期：申请日期 yyyy-MM-dd HH:mm:ss