We activated the Slack integration and for some users that is working fine but others have to authenticate for some reason and then they get a message that they do not have the permission to change the app installation.

Hi @[Lime Leaf 529],Thanks for raising this issue. This doesn't sound expected. Have you spoken to our support team about this yet? I'd recommend reaching out if so.Thanks!

We're having the same issue, was there a resolution for this? Thank you.