The credential with the provided ID () could not be found and no token was specified

[CarlitosDroid]

Your checklist for this issue

• Jenkins version: 2.204.2

• Plugin version: 2.37

• OS: Linux (jenkins docker container https://github.com/jenkinsci/docker)

Description

Steps to reproduce:

1. In a Freestyle project in Jenkins
2. Go to Post-build Actions
3. Add "Add post-build action"
4. Add "Slack Notification"
5. Click on "Advanced..."
6. "Credential" field doesn't recognize credentials, even if the scope is Global or System, always shows "-none-"
7. Click on "Test Connection"
8. An error is shown "The credential with the provided ID () could not be found and no token was specified"

Evidence

[timja]

Can you add a screenshot of how your credential is setup?

[CarlitosDroid]

This is how I setup my credentials

And when I go back to the "Add post-build action" in my job, again I can't be able to detect it, always "none":

[jetersen]

You need to use secret text credential type.

[CarlitosDroid]

@jetersen @timja now it's working fine by using secret text credential type, but I think that it should be also work with the other credential types.
Thank you very much!!!

[jetersen]

No your slack token does not need the username, reason why we only support secret text.

[CarlitosDroid]

You 're right. Thanks a lot @jetersen

[jetersen]

FYI I would always provide a meaningful ID as you will use the ID in your Jenkins pipeline

[fgm]

Final item missing was how to find the token in the current Slack UI : in the "incoming-webhooks" integration, its the part of the URL after "services/", xxxx/xxxx/xxx(24chars)xxx.