diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index a58acb27..fbefcf9d 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -740,6 +740,8 @@ class MlogbInSerializer(CustomModelSerializer):
                 route = attrs.get("route", None)
                 if not route:
                     raise ParseError("缺少工艺步骤")
+            else:
+                attrs["route"] = route
         else:
             route = mlog_route
             attrs["route"] = route
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 8be227da..47ea6a60 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -601,7 +601,7 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
         if material_out is None:
             raise ParseError('产物不可为空')
         # 如果是主要输入物料且是主批次，才需生成输出
-        if route and route.material_in != material_in or mlogbin.parent is not None:
+        if is_fix is False and route and route.material_in != material_in or mlogbin.parent is not None:
             return
 
         wm_in: WMaterial = mlogbin.wm_in