I have been succesfully using the Office 365 Users connector in our Power App which pulls in the Mobile Phone of a selected user on the fly with this formula:
Office365Users.UserProfile(DataCardValue4.Selected.Email).mobilePhone
However, this doesn't work with external / guest users even though they are in the Directory. It returns this error:
"Office365Users.UserProfile failed - status 404 - No user found with the specified id"
I realize this is because they don't have a Profile and was suggested to use User() instead, but this is only good for the current user. We are filling out the PowerApp on behalf of the external user and want to enter their email and fetch the associated mobilePhone which exists in Azure AD.
Is it possible to pull the mobile phone # of a guest user in Power Apps?