diff --git a/extensions/sync_ehr_to_oa/job.py b/extensions/sync_ehr_to_oa/job.py
index 570b255..796d0f8 100644
--- a/extensions/sync_ehr_to_oa/job.py
+++ b/extensions/sync_ehr_to_oa/job.py
@@ -610,6 +610,7 @@ class SyncEhrToOaFormJob(BaseJob):
             failed_count = 0
             failed_data: dict[str, str] = {}
             do_trigger_bool = _to_bool_or_none(do_trigger)
+            unique_filed_payload: list[str] | None = None
 
             def _call_batch_update(*, form_code: str, chunk_rows: list[dict[str, Any]]) -> tuple[dict[str, Any], dict[str, Any], dict[str, Any]]:
                 resp_local = seeyon.batch_update_cap4_form_soap(
@@ -617,7 +618,7 @@ class SyncEhrToOaFormJob(BaseJob):
                     loginName=oa_login_name,
                     rightId=oa_right_id,
                     dataList=chunk_rows,
-                    uniqueFiled=[job_field_code],
+                    uniqueFiled=unique_filed_payload,
                     doTrigger=do_trigger_bool,
                 )
                 rj_local = resp_local.json() if resp_local.content else {}
@@ -651,25 +652,6 @@ class SyncEhrToOaFormJob(BaseJob):
 
                 chunk_success = int(data.get("successCount", 0) or 0)
                 chunk_failed = int(data.get("failedCount", 0) or 0)
-                all_no_master = (
-                    chunk_success == 0
-                    and chunk_failed == len(chunk)
-                    and len(fd) > 0
-                    and all("没有主表记录错误" in str(v or "") for v in fd.values())
-                )
-                # 兜底：若 formCode 选错，改用主表名重试一次。
-                if all_no_master and used_form_code != oa_master_table_name:
-                    logger.warning(
-                        "OA batch-update 全量无主表记录，使用主表名 formCode 重试一次：origin_formCode=%s retry_formCode=%s chunk=%s",
-                        used_form_code,
-                        oa_master_table_name,
-                        i // batch_size + 1,
-                    )
-                    used_form_code = oa_master_table_name
-                    rj, data, fd = _call_batch_update(form_code=used_form_code, chunk_rows=chunk)
-                    message = str(rj.get("message") or "")
-                    chunk_success = int(data.get("successCount", 0) or 0)
-                    chunk_failed = int(data.get("failedCount", 0) or 0)
 
                 success_count += chunk_success
                 failed_count += chunk_failed