In Azure API Management you can enable integration with AAD, by following the guidelines in this article: https://docs.microsoft.com/en-us/azure/api-management/api-management-howto-aad
This part describes the sign in after setting up AAD integration: https://docs.microsoft.com/en-us/azure/api-management/api-management-howto-aad#a-idlogintodevportalsign-in-to-the-developer-portal-by-using-an-azure-ad-account
In step 3 of of this part, the following is mentioned: "You might be prompted with a registration form if any additional information is required."
I don't want to bother my consumers with this dialog, but I can't find what 'additional information' is meant here. The sign up dialog only shows email, first name and last name.
Anyone knows what information the registration process is missing, which leads to this dialog to show up?