diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index 8add9df3..48df5540 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -341,7 +341,7 @@ def mlog_submit(mlog: Mlog, user: User, now: Union[datetime.datetime, None]):
                     wm.batch_ofrom = mlog_or_b.batch_ofrom
                     wm.material_ofrom = mlog_or_b.material_ofrom
             if isinstance(mlog_or_b, Mlogb):
-                if mlog_or_b.number_from and wm.number_from is not None:
+                if mlog_or_b.number_from and wm.number_from is not None and wm.number_from != mlog_or_b.number_from:
                     raise ParseError(f'{wm.batch}-该批号现有库存来源于个号{wm.number_from}')
                 wm.number_from = mlog_or_b.number_from
             wm.save()