The endpoint for "Respond Group Join Request" at /groups/{groupID}/Requests/{UserID} can potentially respond with a 403 forbidden when the user who requested to join is a member of too many groups and therefore cannot join more.
Example content body: "{"error":{"message":"{DISPLAYNAME} can't join right now because they're in too many groups․","status_code":403}}"
The endpoint for "Respond Group Join Request" at /groups/{groupID}/Requests/{UserID} can potentially respond with a 403 forbidden when the user who requested to join is a member of too many groups and therefore cannot join more.
Example content body: "{"error":{"message":"{DISPLAYNAME} can't join right now because they're in too many groups․","status_code":403}}"