diff --git a/apiserver/bll/event/event_bll.py b/apiserver/bll/event/event_bll.py
index ce0fee3..59ddcf1 100644
--- a/apiserver/bll/event/event_bll.py
+++ b/apiserver/bll/event/event_bll.py
@@ -103,64 +103,69 @@ class EventBLL(object):
         return self._metrics
 
     @staticmethod
-    def _get_valid_tasks(company_id, task_ids: Set, allow_locked_tasks=False) -> Set:
-        """Verify that task exists and can be updated"""
-        if not task_ids:
+    def _get_valid_entities(company_id, ids: Mapping[str, bool], model=False) -> Set:
+        """Verify that task or model exists and can be updated"""
+        if not ids:
             return set()
 
         with translate_errors_context():
-            query = Q(id__in=task_ids, company=company_id)
-            if not allow_locked_tasks:
-                query &= Q(status__nin=LOCKED_TASK_STATUSES)
-            res = Task.objects(query).only("id")
-            return {r.id for r in res}
+            allow_locked = {id_ for id_, allowed in ids.items() if allowed}
+            not_locked = {id_ for id_, allowed in ids.items() if not allowed}
+            res = set()
+            allow_locked_q = Q()
+            not_locked_q = (
+                Q(ready__ne=True) if model else Q(status__nin=LOCKED_TASK_STATUSES)
+            )
+            for requested_ids, locked_q in (
+                (allow_locked, allow_locked_q),
+                (not_locked, not_locked_q),
+            ):
+                if not requested_ids:
+                    continue
+                query = Q(id__in=requested_ids, company=company_id)
+                res.update(
+                    (Model if model else Task).objects(query & locked_q).scalar("id")
+                )
 
-    @staticmethod
-    def _get_valid_models(company_id, model_ids: Set, allow_locked_models=False) -> Set:
-        """Verify that task exists and can be updated"""
-        if not model_ids:
-            return set()
-
-        with translate_errors_context():
-            query = Q(id__in=model_ids, company=company_id)
-            if not allow_locked_models:
-                query &= Q(ready__ne=True)
-            res = Model.objects(query).only("id")
-            return {r.id for r in res}
+            return res
 
     def add_events(
-        self, company_id, events, worker, allow_locked=False
+        self, company_id, events, worker
     ) -> Tuple[int, int, dict]:
-        task_ids = set()
-        model_ids = set()
+        task_ids = {}
+        model_ids = {}
         for event in events:
             if event.get("model_event", False):
                 model = event.pop("model", None)
                 if model is not None:
                     event["task"] = model
-                model_ids.add(event.get("task"))
+                entity_ids = model_ids
             else:
                 event["model_event"] = False
-                task_ids.add(event.get("task"))
-            if event.pop("allow_locked", allow_locked) != allow_locked:
+                entity_ids = task_ids
+
+            id_ = event.get("task")
+            allow_locked = event.pop("allow_locked", False)
+            if not id_:
+                continue
+
+            allowed_for_entity = entity_ids.get(id_)
+            if allowed_for_entity is None:
+                entity_ids[id_] = allow_locked
+            elif allowed_for_entity != allow_locked:
                 raise errors.bad_request.ValidationError(
-                    "Inconsistent allow_locked setting in the passed events"
+                    f"Inconsistent allow_locked setting in the passed events for {id_}"
                 )
 
-        task_ids.discard(None)
-        model_ids.discard(None)
-        found_in_both = task_ids.intersection(model_ids)
+        found_in_both = set(task_ids).intersection(set(model_ids))
         if found_in_both:
             raise errors.bad_request.ValidationError(
                 "Inconsistent model_event setting in the passed events",
                 tasks=found_in_both,
             )
-        valid_models = self._get_valid_models(
-            company_id, model_ids=model_ids, allow_locked_models=allow_locked,
-        )
-        valid_tasks = self._get_valid_tasks(
-            company_id, task_ids=task_ids, allow_locked_tasks=allow_locked,
-        )
+        valid_models = self._get_valid_entities(company_id, ids=model_ids, model=True)
+        valid_tasks = self._get_valid_entities(company_id, ids=task_ids)
+
         actions: List[dict] = []
         used_task_ids = set()
         used_model_ids = set()
diff --git a/apiserver/mongo/initialize/pre_populate.py b/apiserver/mongo/initialize/pre_populate.py
index 9ea08c1..d7a68dc 100644
--- a/apiserver/mongo/initialize/pre_populate.py
+++ b/apiserver/mongo/initialize/pre_populate.py
@@ -967,6 +967,7 @@ class PrePopulate:
             for ev in events:
                 ev["task"] = task_id
                 ev["company_id"] = company_id
+                ev["allow_locked"] = True
             cls.event_bll.add_events(
-                company_id, events=events, worker="", allow_locked=True
+                company_id, events=events, worker=""
             )
diff --git a/apiserver/services/events.py b/apiserver/services/events.py
index 55f4bd0..977194c 100644
--- a/apiserver/services/events.py
+++ b/apiserver/services/events.py
@@ -70,9 +70,8 @@ def _assert_task_or_model_exists(
 @endpoint("events.add")
 def add(call: APICall, company_id, _):
     data = call.data.copy()
-    allow_locked = data.pop("allow_locked", False)
     added, err_count, err_info = event_bll.add_events(
-        company_id, [data], call.worker, allow_locked=allow_locked
+        company_id, [data], call.worker
     )
     call.result.data = dict(added=added, errors=err_count, errors_info=err_info)
 
@@ -87,7 +86,6 @@ def add_batch(call: APICall, company_id, _):
         company_id,
         events,
         call.worker,
-        allow_locked=events[0].get("allow_locked", False),
     )
     call.result.data = dict(added=added, errors=err_count, errors_info=err_info)
 
diff --git a/apiserver/tests/automated/test_task_events.py b/apiserver/tests/automated/test_task_events.py
index 6ca7f44..a9ff3cf 100644
--- a/apiserver/tests/automated/test_task_events.py
+++ b/apiserver/tests/automated/test_task_events.py
@@ -218,6 +218,7 @@ class TestTaskEvents(TestService):
                 msg=f"This is a log message",
                 metric="Metric0",
                 variant="Variant0",
+                allow_locked=True,
             )
         )
         self.send_batch(events)