100% seamless activation for Office 365 for users with PTA and Seamless SSO
Make office try to activate using the UPN before showing the input form to activate Office. As no password is asked with PTA with Seamless SSO this would make the Office activation 100% seamless like with ADFS.
Office already collect the user's UPN, email and so on in the Office identities registry keys. So it shouldn't be a big deal trying to activate with it first before asking for it.
Yes, default behaviour should be similar to ADFS, where Office activation is seamless, and Office365 account is added to OfficeProPlus autmatically.
Yeah, seems to be in progress based on that similar post. https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/18788305-activate-office-365-proplus-through-azure-ad-conne