Anyone agree that this error message is ambiguous? (e.g., When inviting a user ID who that had already been invited to the topic.)
Validation failed: Topic has already been taken
Perhaps something like this?
Sorry, that user has already been invited. You may only invite a user to a topic once.
(A different question is whether or not it’s a good idea to limit 1 invitation per user… in my use case, I needed them to come back to the topic to participate again.)
