In this phase of Collaboration, all collaborators must have their own Atticus account. If you invite someone without an account, they will receive an email inviting them to purchase Atticus.
If you have confirmed that the collaborator already owns Atticus, you may want to confirm that you’re using the email address associated with their Atticus account and the email address was entered correctly.
If the person being invited to collaborate on a project has an Atticus account, they will receive a notification of the invitation when they log into their account, and they will see the book in the Collaboration tab of their dashboard.
If the person does not have an account, they will be sent an email with an invitation to purchase Atticus.