Hi,
I am Gallery admin and want to open new collections. Each time I want to add my self to a collection, I am receiving the error message "... could not be added to the collection. Request failed with status code 400". What might be the reason for that?
Best regards,
Frank
What version of Alteryx are you running on the server? Are you trying to add yourself from the admin panel?
Just check if the user already exists in the collection