I created a Slack credential via Slack API, tested it, it works :
In my workflow in the Slack node, it cannot load the list of channels:
It says “Please check your credential”
It was working correctly in a previous version of n8n cloud, with the same credential.
Am I missing something ?
Thanks in advance
Hey @raphaelh,
Are you using a bot or user token? It could be that you have not added the scopes to your Slack app so that would be the first thing I would check. You could also try clicking on the 3 dots next to Fixed above the channel box and select refresh to see if that shows anything.
hey @Jon
Thanks for your quick reply
I’m using a bot
On https://api.slack.com/apps/xxx I have the following :
and
In OAuth & Permissions I have :
I tried “Reinstall to Workspace” but didn’t fix the problem:
I tried “Refresh List” but didn’t fix the problem either:
Hey @raphaelh,
The bot would need access to channels:read if you want it to read a list of channels, You may also need other scopes to be set depending on what you are doing.
hey @Jon
I added the channels:read scope :
Reinstalled to the workspace
Deleted and recreated the Slack node, and still have the same problem
Can I get some logs on n8n side on what’s going on under the hood?
If I select “By name” it works :
The problem seems to be with “From list”. Do you know which permission is needed for “From list”?
Hey @raphaelh,
Looking at the Slack api docs the from list option needs the channels:read scope, the api call we make is this: conversations.list method | Slack it could be that you need one of the others listed as well.
For those having the same problem, I had to add groups:read scope in addition to channels:read :
It’s for private channels
thanks @Jon for your help
