A guest was deactivated and I'm not able to reactivate the user. There is no reactivate button against the person's name on the members list and if I try to add them back to the workspace or board, I get a message that the user is not a managed Enterprise member or do not have an allowed email domain.
I would want to check that the account is still working first. Ideally, get them to log into it at https://id.atlassian.com and check everything is looking ok.
Then I would want to check how your Trello is configured to let people into it - it sounds like you have got it set up to only allow people with accounts on certain domains in.
Calling all Trello + Confluence users! We're celebrating all things Work and Wellness in our Confluence collection, where our team has been sharing activities to create more mindfulness around the ...