$ snapcraft close esr/stable
Locale not set! Snapcraft will temporarily use C.UTF-8
Your account lacks permission to close channels for this snap. Make sure the logged in account has upload permissions on 'esr/stable' in series '16'.
I’m using my personal account, which was able to upload the snap earlier today.
Thanks for the clarification. I should have read snapcraft close --help better too. Speaking of which, snapcraft close should technically require 2 positional arguments. It didn’t enforce it based on the error message in comment 21. I filed a bug to make the error message clearer: https://bugs.launchpad.net/snapcraft/+bug/1771297