I have a new Samsung Galaxy z 7 flip phone and I'm unable to open Microsoft Outlook on my new device. I continue to get an error stating "Authentication error has occurred, please try again later". If someone out there has solved this issue. please adv"

Hi Glenn,
This error often happens due to app or authentication issues. Try these steps:

1. Update both Microsoft Outlook and Microsoft Authenticator from the Play Store.
2. Clear Outlook’s cache and data (Settings > Apps > Outlook > Storage).
3. Reinstall Outlook and restart your phone.
4. Ensure Automatic date & time is enabled in Settings.
5. Remove and re-add your Microsoft account if sync fails.

Microsoft also has an official guide here: Can't sign in to the Outlook mobile app.