diff --git a/zt-module-infra/zt-module-infra-api/src/main/java/com/zt/plat/module/infra/api/businessfile/dto/BusinessFileRespDTO.java b/zt-module-infra/zt-module-infra-api/src/main/java/com/zt/plat/module/infra/api/businessfile/dto/BusinessFileRespDTO.java
index 82605536..d6f33774 100644
--- a/zt-module-infra/zt-module-infra-api/src/main/java/com/zt/plat/module/infra/api/businessfile/dto/BusinessFileRespDTO.java
+++ b/zt-module-infra/zt-module-infra-api/src/main/java/com/zt/plat/module/infra/api/businessfile/dto/BusinessFileRespDTO.java
@@ -24,6 +24,11 @@ public class BusinessFileRespDTO implements Serializable {
      */
     private Long id;
 
+    /**
+     * 租户编号
+     */
+    private Long tenantId;
+
     /**
      * 业务Id
      */
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileRespVO.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileRespVO.java
index c9990c42..a99ec881 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileRespVO.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileRespVO.java
@@ -16,6 +16,10 @@ public class BusinessFileRespVO {
     @ExcelProperty("主键ID")
     private Long id;
 
+    @Schema(description = "租户编号", example = "1024")
+    @ExcelProperty("租户编号")
+    private Long tenantId;
+
     @Schema(description = "业务Id", requiredMode = Schema.RequiredMode.REQUIRED, example = "24322")
     @ExcelProperty("业务Id")
     private Long businessId;
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/dal/dataobject/businessfile/BusinessFileDO.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/dal/dataobject/businessfile/BusinessFileDO.java
index 84df46e9..4c067913 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/dal/dataobject/businessfile/BusinessFileDO.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/dal/dataobject/businessfile/BusinessFileDO.java
@@ -24,6 +24,11 @@ public class BusinessFileDO extends BaseDO {
     @TableId(type = IdType.ASSIGN_ID)
     private Long id;
     /**
+    * 租户编号
+    */
+    @TableField("TENANT_ID")
+    private Long tenantId;
+    /**
     * 业务Id
     */
     @TableField("BSN_ID")
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/businessfile/BusinessFileServiceImpl.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/businessfile/BusinessFileServiceImpl.java
index 4a30d7fa..92722f96 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/businessfile/BusinessFileServiceImpl.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/businessfile/BusinessFileServiceImpl.java
@@ -5,6 +5,7 @@ import com.zt.plat.framework.common.pojo.PageResult;
 import com.zt.plat.framework.common.util.object.BeanUtils;
 import com.zt.plat.framework.common.util.user.UserNameEnrichUtils;
 import com.zt.plat.framework.mybatis.core.query.LambdaQueryWrapperX;
+import com.zt.plat.framework.tenant.core.aop.TenantIgnore;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFilePageReqVO;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFileRespVO;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFileSaveReqVO;
@@ -101,6 +102,7 @@ public class BusinessFileServiceImpl implements BusinessFileService {
     }
 
     @Override
+    @TenantIgnore
     public BusinessFileDO getBusinessFileByBusinessCode(String businessCode) {
         if (!StringUtils.hasText(businessCode)) {
             throw exception(BUSINESS_FILE_NOT_EXISTS);
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/integration/iwork/IWorkIntegrationController.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/integration/iwork/IWorkIntegrationController.java
index fb69b185..e69863fe 100644
--- a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/integration/iwork/IWorkIntegrationController.java
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/integration/iwork/IWorkIntegrationController.java
@@ -1,12 +1,14 @@
 package com.zt.plat.module.system.controller.admin.integration.iwork;
 
 import com.zt.plat.framework.common.pojo.CommonResult;
+import com.zt.plat.framework.tenant.core.aop.TenantIgnore;
 import com.zt.plat.module.system.controller.admin.integration.iwork.vo.*;
 import com.zt.plat.module.system.service.integration.iwork.IWorkIntegrationService;
 import com.zt.plat.module.system.service.integration.iwork.IWorkOrgRestService;
 import com.zt.plat.module.system.service.integration.iwork.IWorkSyncService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.security.PermitAll;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import org.springframework.validation.annotation.Validated;
@@ -14,7 +16,6 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import jakarta.annotation.security.PermitAll;
 
 import static com.zt.plat.framework.common.pojo.CommonResult.success;
 
@@ -57,6 +58,7 @@ public class IWorkIntegrationController {
     }
 
     @PermitAll
+    @TenantIgnore
     @PostMapping("/callback/file")
     @Operation(summary = "iWork 文件回调：根据文件 URL 保存为附件并创建业务附件关联")
     public CommonResult<Long> callbackFile(@Valid @RequestBody IWorkFileCallbackReqVO reqVO) {
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/integration/iwork/impl/IWorkIntegrationServiceImpl.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/integration/iwork/impl/IWorkIntegrationServiceImpl.java
index d1d7108a..c3a7a5cd 100644
--- a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/integration/iwork/impl/IWorkIntegrationServiceImpl.java
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/integration/iwork/impl/IWorkIntegrationServiceImpl.java
@@ -19,6 +19,7 @@ import com.zt.plat.module.infra.api.file.dto.FileRespDTO;
 import com.zt.plat.module.system.controller.admin.integration.iwork.vo.*;
 import com.zt.plat.module.system.framework.integration.iwork.config.IWorkProperties;
 import com.zt.plat.module.system.service.integration.iwork.IWorkIntegrationService;
+import com.zt.plat.framework.tenant.core.util.TenantUtils;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -37,6 +38,7 @@ import java.security.*;
 import java.security.spec.X509EncodedKeySpec;
 import java.time.Instant;
 import java.util.*;
+import java.util.concurrent.atomic.AtomicReference;
 
 import static com.zt.plat.module.system.service.integration.iwork.IWorkIntegrationErrorCodeConstants.*;
 
@@ -171,11 +173,21 @@ public class IWorkIntegrationServiceImpl implements IWorkIntegrationService {
         }
 
         BusinessFileRespDTO referenceBusinessFile = loadBusinessFileByBusinessCode(businessCode);
+        Long tenantId = referenceBusinessFile.getTenantId();
+        if (tenantId == null) {
+            throw new ServiceException(IWORK_CONFIGURATION_INVALID.getCode(), "业务附件缺少租户信息，无法创建回调附件: " + businessCode);
+        }
+
+        AtomicReference<Long> attachmentIdRef = new AtomicReference<>();
+        TenantUtils.execute(tenantId, () -> attachmentIdRef.set(saveCallbackAttachment(fileUrl, reqVO.getFileName(), referenceBusinessFile)));
+        return attachmentIdRef.get();
+    }
+
+    private Long saveCallbackAttachment(String fileUrl, String overrideFileName, BusinessFileRespDTO referenceBusinessFile) {
         Long businessId = referenceBusinessFile.getBusinessId();
 
-        // 通过文件 API 创建文件
         FileCreateReqDTO fileCreateReqDTO = new FileCreateReqDTO();
-        fileCreateReqDTO.setName(resolveFileName(reqVO.getFileName(), fileUrl));
+        fileCreateReqDTO.setName(resolveFileName(overrideFileName, fileUrl));
         fileCreateReqDTO.setDirectory(null);
         fileCreateReqDTO.setType(null);
         fileCreateReqDTO.setContent(downloadFileBytes(fileUrl));
@@ -188,8 +200,8 @@ public class IWorkIntegrationServiceImpl implements IWorkIntegrationService {
         Long fileId = fileResult.getData().getId();
 
         BusinessFileSaveReqDTO businessReq = BusinessFileSaveReqDTO.builder()
-            .businessId(businessId)
-            .businessCode(referenceBusinessFile.getBusinessCode())
+                .businessId(businessId)
+                .businessCode(referenceBusinessFile.getBusinessCode())
                 .fileId(fileId)
                 .fileName(fileResult.getData().getName())
                 .source("iwork")