Question around using slack-machine via a channel

[hoppingmonkey]

Hi there,

Superb product!

I have a quick question (apologies if I'm being dumb).

It's about the expected behaviour in the following configuration.

We have a private slack app installed into slack workspace 1 which uses slack-machine on the backend. Works great with a few custom plugins!

Then, in another (totally separate) slack workspace (workspace 2), there is a channel where a user from workspace 1 has been added using Slack-connect. The workspace 1 private slack app has also been added to the channel on workspace 2.

So in the workspace 2 channel there are these users:

• user from workspace 1
• user from workspace 2 (user id U08AAAA8N)
• private slack app from workspace 1

In the workspace 2 channel, all users in the channel can post and the slack-machine backend can see these messages regardless of who posts.

When the user from workspace 1 interacts with the bot in the workspace 2 channel, it works fine. The bot can also post responses to the channel, which is visible to all in the channel.

However, when the user from workspace 2 interacts with the bot in the workspace 2 channel, slack-machine throws an error trying to reply.

I think this is by design as it seems it can't find the user in the user is the client.users channel... but can someone confirm that?

Here are the logs:

This shows message shows a message from a user from workspace 2 posting in the workspace 2 channel

2023-10-31T11:06:04.965616Z [debug ] Request received [machine.handlers] filename=handlers.py func_name=log_request lineno=114 request={'envelope_id': '6c1311fe-f16842ae3', 'payload': {'token': 'OXjivfwZE9', 'team_id': 'T05AZPF', 'context_team_id': 'T06FHC', 'context_enterprise_id': None, 'api_app_id': 'A06R9C', 'event': {'client_msg_id': '22af3593-4446-4b8b-b03c-50b8a73b814c', 'type': 'message', 'text': 'hey there', 'user': 'U08AAAA8N', 'ts': '1698750364.568819', 'blocks': [{'type': 'rich_text', 'block_id': 'FIUMB', 'elements': [{'type': 'rich_text_section', 'elements': [{'type': 'text', 'text': 'hey there'}]}]}], 'team': 'T06FHC', 'channel': 'C063XRUFVEV', 'event_ts': '1698750364.568819', 'channel_type': 'group'}, 'type': 'event_callback', 'event_id': 'Ev0634TL4T7H', 'event_time': 1698750364, 'authorizations': [{'enterprise_id': None, 'team_id': 'T05AZPF', 'user_id': 'U06273E2', 'is_bot': True, 'is_enterprise_install': False}], 'is_ext_shared_channel': True, 'event_context': '4-eyJldCI6Im1lc3NhZ2*********iY2lkIjoiQzA2M1hSVUZWRVYifQ'}} type=events_api
2023-10-31T11:06:04.966908Z [error ] Failed to run a request listener: 'U08AAAA8N', session: s_274220061 [slack_sdk.socket_mode.aiohttp] filename=async_client.py func_name=run_message_listeners lineno=158
Traceback (most recent call last):
File "/Users/abc/Code/app/venv/lib/python3.11/site-packages/slack_sdk/socket_mode/async_client.py", line 156, in run_message_listeners
await listener(self, request) # type: ignore
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/abc/Code/app/venv/lib/python3.11/site-packages/machine/handlers.py", line 40, in handle_message_request
await handle_message(
File "/Users/abc/Code/app/venv/lib/python3.11/site-packages/machine/handlers.py", line 158, in handle_message
await dispatch_listeners(event, listeners, slack_client, log_handled_message)
File "/Users/abc/Code/app/venv/lib/python3.11/site-packages/machine/handlers.py", line 214, in dispatch_listeners
handler.class_name, handler.function.name, message.sender.id, message.sender.name
^^^^^^^^^^^^^^
File "/Users/abc/Code/app/venv/lib/python3.11/site-packages/machine/plugins/message.py", line 37, in sender
return self._client.users[self._msg_event["user"]]
~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
KeyError: 'U08AAAA8N'