diff --git a/changelog/7722.bugfix.md b/changelog/7722.bugfix.md
new file mode 100644
index 000000000000..73ca0f2ba008
--- /dev/null
+++ b/changelog/7722.bugfix.md
@@ -0,0 +1 @@
+Fix a bug where, if a user injects an intent using the HTTP API, slot auto-filling is not performed on the entities provided.
\ No newline at end of file
diff --git a/rasa/core/processor.py b/rasa/core/processor.py
index 72ba3fd074a8..2cd6d0f14c8c 100644
--- a/rasa/core/processor.py
+++ b/rasa/core/processor.py
@@ -405,7 +405,9 @@ async def trigger_external_user_uttered(
                 f"Invalid entity specification: {entities}. Assuming no entities."
             )
             entity_list = []
-        tracker.update(UserUttered.create_external(intent_name, entity_list))
+        tracker.update(
+            UserUttered.create_external(intent_name, entity_list), self.domain
+        )
         await self._predict_and_execute_next_action(output_channel, tracker)
         # save tracker state to continue conversation from this state
         self._save_tracker(tracker)