I'm trying to take out the CustomerName constraint but I don't know how Can accomplish this with good practices, I tried from the backoffice but the Constraint group would not be able to update from backoffice, and try with some Impex but still got error. How can I accomplish this? Because Im getting the users from the SAP customer data cloud but cannot register them only with email and password because this constraint.
Did you change the value of Enabled to False?
If yes, you should also click the Reload validation engine button (highlighted in the screenshot)