user_id finalization

docs/open-source/graph_memory/overview.mdx

@@ -109,6 +109,10 @@ The Mem0's graph supports the following operations:
 
 ### Add Memories
 
+<Note>
+If you are using Mem0 with Graph Memory, it is recommended to pass `user_id`. The default value of `user_id` (in case of graph memory) is `user`.
+</Note>
+
 <CodeGroup>
 ```python Code
 m.add("I like pizza", user_id="alice")

mem0/memory/main.py

@@ -240,14 +240,11 @@ def _add_to_vector_store(self, messages, metadata, filters):
     def _add_to_graph(self, messages, filters):
         added_entities = []
         if self.api_version == "v1.1" and self.enable_graph:
-            if filters["user_id"]:
-                self.graph.user_id = filters["user_id"]
-            elif filters["agent_id"]:
-                self.graph.agent_id = filters["agent_id"]
-            elif filters["run_id"]:
-                self.graph.run_id = filters["run_id"]
+            if filters.get("user_id"):
+                filters["user_id"] = filters["user_id"]
             else:
-                self.graph.user_id = "USER"
+                filters["user_id"] = "user"
+
             data = "\n".join([msg["content"] for msg in messages if "content" in msg and msg["role"] != "system"])
             added_entities = self.graph.add(data, filters)