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We are using auth0 login and signup for our react app to allow users to signup. It has the google and Microsoft logins integrated into it and the microsoft is also working for some accounts but for some recent accounts it has been showing this error ( shown in the picture ) We have all the recommended settings enabled, all types of users/tenants are allowed in the azure AD.
“User account ‘[my email]’ from identity provider ‘[my organization]’ does not exist in tenant ‘Qarar Professional’ and cannot access the application. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.”