diff --git a/client/ayon_core/tools/common_models/hierarchy.py b/client/ayon_core/tools/common_models/hierarchy.py
index edff8471b0..891eb80960 100644
--- a/client/ayon_core/tools/common_models/hierarchy.py
+++ b/client/ayon_core/tools/common_models/hierarchy.py
@@ -227,6 +227,9 @@ class HierarchyModel(object):
         self._tasks_by_id = NestedCacheItem(
             levels=2, default_factory=dict, lifetime=self.lifetime)
 
+        self._entity_ids_by_assignee = NestedCacheItem(
+            levels=2, default_factory=dict, lifetime=self.lifetime)
+
         self._folders_refreshing = set()
         self._tasks_refreshing = set()
         self._controller = controller
@@ -238,6 +241,8 @@ class HierarchyModel(object):
         self._task_items.reset()
         self._tasks_by_id.reset()
 
+        self._entity_ids_by_assignee.reset()
+
     def refresh_project(self, project_name):
         """Force to refresh folder items for a project.
 
@@ -461,6 +466,54 @@ class HierarchyModel(object):
         output = self.get_task_entities(project_name, {task_id})
         return output[task_id]
 
+    def get_entity_ids_for_assignees(
+        self, project_name: str, assignees: list[str]
+    ):
+        folder_ids = set()
+        task_ids = set()
+        output = {
+            "folder_ids": folder_ids,
+            "task_ids": task_ids,
+        }
+        assignees = set(assignees)
+        for assignee in tuple(assignees):
+            cache = self._entity_ids_by_assignee[project_name][assignee]
+            if cache.is_valid:
+                assignees.discard(assignee)
+                assignee_data = cache.get_data()
+                folder_ids.update(assignee_data["folder_ids"])
+                task_ids.update(assignee_data["task_ids"])
+
+        if not assignees:
+            return output
+
+        tasks = ayon_api.get_tasks(
+            project_name,
+            assignees_all=assignees,
+            fields={"id", "folderId", "assignees"},
+        )
+        tasks_assignee = {}
+        for task in tasks:
+            folder_ids.add(task["folderId"])
+            task_ids.add(task["id"])
+            for assignee in task["assignees"]:
+                tasks_assignee.setdefault(assignee, []).append(task)
+
+        for assignee, tasks in tasks_assignee.items():
+            cache = self._entity_ids_by_assignee[project_name][assignee]
+            assignee_folder_ids = set()
+            assignee_task_ids = set()
+            assignee_data = {
+                "folder_ids": assignee_folder_ids,
+                "task_ids": assignee_task_ids,
+            }
+            for task in tasks:
+                assignee_folder_ids.add(task["folderId"])
+                assignee_task_ids.add(task["id"])
+            cache.update_data(assignee_data)
+
+        return output
+
     @contextlib.contextmanager
     def _folder_refresh_event_manager(self, project_name, sender):
         self._folders_refreshing.add(project_name)