this is old but i have the same problem and i can't find the setting to change it. It is my trello account. I added all boards and did upgrade one team, which owns the board I'm trying to add and observer too, to business class. this team has several boards. right now i only want to add an observer to one of them. According to the board settings all members can add and remove
If you had to thrive a new habit during a lockdown, what would it be? Trello
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