u/Deweyoxberg

Asking the wider IT community if anyone has noticed the O365 mobile apps failing to send the federation auth to OKTA. Watching many users who do the following:

- Access their OKTA subdomain, like contoso.okta.com via browser
- Enter creds, pass MFA, dashboard is presented. Everything is fine.

But

- Access any Office 365 mobile app, like Excel
- Enter username with domain, such as user@contoso.com
- End user never gets to submit their credentials, and traffic never makes it to OKTA. There's no network blocking, and there is no difference between WIFI/5G/Android/iOS/macOS.

Only known common denominator is Microsoft updating their mobile apps several times in the last two weeks. Seems post-update, the apps are dead on arrival.