I have an on-premise install of sentry and am trying to set up alerting via DM. I am able to set up alerts to channels, but when I try to set a user, for example ‘@firstname.lastname’ the follow error occurs:
The slack resource “firstname.lastname” does not exist or has not been granted access in the $WORKSPACENAME workspace.
" The action enables routing alert notifications to selected Channels (using the # prefix) or Direct Messages (using the @ prefix) in your Slack Workspaces."
I upgraded to the latest version of on-premise and solved the issue. The install wasn’t as straight forward as running the install.sh though, it required pulling the latest version from github due to (what seems to be) a new nginx container, i documented and closed an issue here: