diff --git a/daemon/core/api/grpc/client.py b/daemon/core/api/grpc/client.py
index e886c7e7..a676c7c2 100644
--- a/daemon/core/api/grpc/client.py
+++ b/daemon/core/api/grpc/client.py
@@ -408,21 +408,6 @@ class CoreGrpcClient:
         response = self.stub.GetSession(request)
         return wrappers.Session.from_proto(response.session)
 
-    def set_session_state(self, session_id: int, state: wrappers.SessionState) -> bool:
-        """
-        Set session state.
-
-        :param session_id: id of session
-        :param state: session state to transition to
-        :return: True for success, False otherwise
-        :raises grpc.RpcError: when session doesn't exist
-        """
-        request = core_pb2.SetSessionStateRequest(
-            session_id=session_id, state=state.value
-        )
-        response = self.stub.SetSessionState(request)
-        return response.result
-
     def alert(
         self,
         session_id: int,
diff --git a/daemon/core/api/grpc/server.py b/daemon/core/api/grpc/server.py
index 4c546d8e..90e95317 100644
--- a/daemon/core/api/grpc/server.py
+++ b/daemon/core/api/grpc/server.py
@@ -402,35 +402,6 @@ class CoreGrpcServer(core_pb2_grpc.CoreApiServicer):
             sessions.append(session_summary)
         return core_pb2.GetSessionsResponse(sessions=sessions)
 
-    def SetSessionState(
-        self, request: core_pb2.SetSessionStateRequest, context: ServicerContext
-    ) -> core_pb2.SetSessionStateResponse:
-        """
-        Set session state
-
-        :param request: set-session-state request
-        :param context:context object
-        :return: set-session-state response
-        """
-        logger.debug("set session state: %s", request)
-        session = self.get_session(request.session_id, context)
-        try:
-            state = EventTypes(request.state)
-            session.set_state(state)
-            if state == EventTypes.INSTANTIATION_STATE:
-                session.directory.mkdir(exist_ok=True)
-                session.instantiate()
-            elif state == EventTypes.SHUTDOWN_STATE:
-                session.shutdown()
-            elif state == EventTypes.DATACOLLECT_STATE:
-                session.data_collect()
-            elif state == EventTypes.DEFINITION_STATE:
-                session.clear()
-            result = True
-        except KeyError:
-            result = False
-        return core_pb2.SetSessionStateResponse(result=result)
-
     def CheckSession(
         self, request: core_pb2.GetSessionRequest, context: ServicerContext
     ) -> core_pb2.CheckSessionResponse:
diff --git a/daemon/proto/core/api/grpc/core.proto b/daemon/proto/core/api/grpc/core.proto
index 039c889f..80cbecff 100644
--- a/daemon/proto/core/api/grpc/core.proto
+++ b/daemon/proto/core/api/grpc/core.proto
@@ -25,8 +25,6 @@ service CoreApi {
     }
     rpc CheckSession (CheckSessionRequest) returns (CheckSessionResponse) {
     }
-    rpc SetSessionState (SetSessionStateRequest) returns (SetSessionStateResponse) {
-    }
     rpc SessionAlert (SessionAlertRequest) returns (SessionAlertResponse) {
     }
 
@@ -216,15 +214,6 @@ message GetSessionResponse {
     Session session = 1;
 }
 
-message SetSessionStateRequest {
-    int32 session_id = 1;
-    SessionState.Enum state = 2;
-}
-
-message SetSessionStateResponse {
-    bool result = 1;
-}
-
 message SessionAlertRequest {
     int32 session_id = 1;
     ExceptionLevel.Enum level = 2;
diff --git a/daemon/tests/test_grpc.py b/daemon/tests/test_grpc.py
index bd3c92d3..73485386 100644
--- a/daemon/tests/test_grpc.py
+++ b/daemon/tests/test_grpc.py
@@ -243,19 +243,6 @@ class TestGrpc:
         assert len(sessions) == 1
         assert found_session is not None
 
-    def test_set_session_state(self, grpc_server: CoreGrpcServer):
-        # given
-        client = CoreGrpcClient()
-        session = grpc_server.coreemu.create_session()
-
-        # then
-        with client.context_connect():
-            result = client.set_session_state(session.id, SessionState.DEFINITION)
-
-        # then
-        assert result is True
-        assert session.state == EventTypes.DEFINITION_STATE
-
     def test_add_node(self, grpc_server: CoreGrpcServer):
         # given
         client = CoreGrpcClient()