diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index 9680aad2..edda8964 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -757,9 +757,11 @@ class BatchLog(BaseModel):
                 target = log.target
                 log.delete()
                 if not BatchLog.objects.filter(Q(source=source) | Q(target=source)).exists():
-                    source.delete()
+                    if source.mio is None and source.mioitem is None:
+                        source.delete()
                 if not BatchLog.objects.filter(Q(source=target) | Q(target=target)).exists():
-                    target.delete()
+                    if target.mio is None and target.mioitem is None:
+                        target.delete()
         if mlog:
             logs = cls.objects.filter(mlog=mlog)
             for log in logs:
@@ -767,9 +769,11 @@ class BatchLog(BaseModel):
                 target = log.target
                 log.delete()
                 if not BatchLog.objects.filter(Q(source=source) | Q(target=source)).exists():
-                    source.delete()
+                    if source.mio is None and source.mioitem is None:
+                        source.delete()
                 if not BatchLog.objects.filter(Q(source=target) | Q(target=target)).exists():
-                    target.delete()
+                    if target.mio is None and target.mioitem is None:
+                        target.delete()
         if mio:
             BatchSt.objects.filter(mio=mio).delete()
         if mioitem: