diff --git a/libraries/botbuilder-core/botbuilder/core/bot_framework_adapter.py b/libraries/botbuilder-core/botbuilder/core/bot_framework_adapter.py
index 582704828..7309bdbef 100644
--- a/libraries/botbuilder-core/botbuilder/core/bot_framework_adapter.py
+++ b/libraries/botbuilder-core/botbuilder/core/bot_framework_adapter.py
@@ -38,6 +38,7 @@
 from .bot_adapter import BotAdapter
 from .turn_context import TurnContext
 from .user_token_provider import UserTokenProvider
+from .invoke_response import InvokeResponse
 from .conversation_reference_extension import get_continuation_activity
 
 USER_AGENT = f"Microsoft-BotFramework/3.1 (BotBuilder Python/{__version__})"
@@ -263,7 +264,17 @@ async def process_activity(self, req, auth_header: str, logic: Callable):
                     teams_channel_data["tenant"]["id"]
                 )
 
-        return await self.run_pipeline(context, logic)
+        await self.run_pipeline(context, logic)
+
+        if activity.type == ActivityTypes.invoke:
+            invoke_response = context.turn_state.get(
+                BotFrameworkAdapter._INVOKE_RESPONSE_KEY  # pylint: disable=protected-access
+            )
+            if invoke_response is None:
+                return InvokeResponse(status=501)
+            return invoke_response.value
+
+        return None
 
     async def authenticate_request(
         self, request: Activity, auth_header: str
@@ -283,7 +294,7 @@ async def authenticate_request(
         )
 
         if not claims.is_authenticated:
-            raise Exception("Unauthorized Access. Request is not authorized")
+            raise PermissionError("Unauthorized Access. Request is not authorized")
 
         return claims
 
diff --git a/libraries/botbuilder-core/botbuilder/core/teams/__init__.py b/libraries/botbuilder-core/botbuilder/core/teams/__init__.py
index 2e482ac88..9acc2a250 100644
--- a/libraries/botbuilder-core/botbuilder/core/teams/__init__.py
+++ b/libraries/botbuilder-core/botbuilder/core/teams/__init__.py
@@ -7,7 +7,7 @@
 
 from .teams_activity_handler import TeamsActivityHandler
 from .teams_info import TeamsInfo
-from .teams_helper import deserializer_helper
+from .teams_helper import deserializer_helper, serializer_helper
 from .teams_activity_extensions import (
     teams_get_channel_id,
     teams_get_team_info,
@@ -21,4 +21,5 @@
     "teams_get_channel_id",
     "teams_get_team_info",
     "teams_notify_user",
+    "serializer_helper",
 ]
diff --git a/libraries/botbuilder-core/botbuilder/core/teams/teams_activity_handler.py b/libraries/botbuilder-core/botbuilder/core/teams/teams_activity_handler.py
index ff7b3b1b8..174f7e9b8 100644
--- a/libraries/botbuilder-core/botbuilder/core/teams/teams_activity_handler.py
+++ b/libraries/botbuilder-core/botbuilder/core/teams/teams_activity_handler.py
@@ -5,8 +5,8 @@
 from botbuilder.schema import Activity, ActivityTypes, ChannelAccount
 from botbuilder.core import ActivityHandler, InvokeResponse, BotFrameworkAdapter
 from botbuilder.core.turn_context import TurnContext
+from botbuilder.core.teams.teams_helper import deserializer_helper, serializer_helper
 from botbuilder.core.teams.teams_info import TeamsInfo
-from botbuilder.core.teams.teams_helper import deserializer_helper
 from botbuilder.schema.teams import (
     AppBasedLinkQuery,
     TeamInfo,
@@ -446,7 +446,7 @@ async def on_teams_channel_renamed_activity(  # pylint: disable=unused-argument
 
     @staticmethod
     def _create_invoke_response(body: object = None) -> InvokeResponse:
-        return InvokeResponse(status=int(HTTPStatus.OK), body=body)
+        return InvokeResponse(status=int(HTTPStatus.OK), body=serializer_helper(body))
 
 
 class _InvokeResponseException(Exception):
diff --git a/libraries/botbuilder-core/botbuilder/core/teams/teams_helper.py b/libraries/botbuilder-core/botbuilder/core/teams/teams_helper.py
index 2e11f2953..f9e8c65e8 100644
--- a/libraries/botbuilder-core/botbuilder/core/teams/teams_helper.py
+++ b/libraries/botbuilder-core/botbuilder/core/teams/teams_helper.py
@@ -2,7 +2,7 @@
 from typing import Type
 from enum import Enum
 
-from msrest.serialization import Model, Deserializer
+from msrest.serialization import Model, Deserializer, Serializer
 
 import botbuilder.schema as schema
 import botbuilder.schema.teams as teams_schema
@@ -22,3 +22,26 @@ def deserializer_helper(msrest_cls: Type[Model], dict_to_deserialize: dict) -> M
     dependencies_dict = {dependency.__name__: dependency for dependency in dependencies}
     deserializer = Deserializer(dependencies_dict)
     return deserializer(msrest_cls.__name__, dict_to_deserialize)
+
+
+# TODO consolidate these two methods
+
+
+def serializer_helper(object_to_serialize: Model) -> dict:
+    if object_to_serialize is None:
+        return None
+
+    dependencies = [
+        schema_cls
+        for key, schema_cls in getmembers(schema)
+        if isinstance(schema_cls, type) and issubclass(schema_cls, (Model, Enum))
+    ]
+    dependencies += [
+        schema_cls
+        for key, schema_cls in getmembers(teams_schema)
+        if isinstance(schema_cls, type) and issubclass(schema_cls, (Model, Enum))
+    ]
+    dependencies_dict = {dependency.__name__: dependency for dependency in dependencies}
+    serializer = Serializer(dependencies_dict)
+    # pylint: disable=protected-access
+    return serializer._serialize(object_to_serialize)
diff --git a/libraries/botbuilder-schema/botbuilder/schema/teams/_models.py b/libraries/botbuilder-schema/botbuilder/schema/teams/_models.py
index 835846cb4..3cce195d6 100644
--- a/libraries/botbuilder-schema/botbuilder/schema/teams/_models.py
+++ b/libraries/botbuilder-schema/botbuilder/schema/teams/_models.py
@@ -1538,6 +1538,7 @@ class TeamsChannelAccount(ChannelAccount):
         "surname": {"key": "surname", "type": "str"},
         "email": {"key": "email", "type": "str"},
         "userPrincipalName": {"key": "userPrincipalName", "type": "str"},
+        "aad_object_id": {"key": "objectId", "type": "str"},
     }
 
     def __init__(self, **kwargs):