mobile app fails authentication when installing (android)

I have tried numerous times to install the outlook mobile app.

i have uninstalled & reinstalled it numerous times

i even broke down and went to a brick & mortar tech support store to no avail

i had the app on a previous phone and just purchased a Samsung S24 Ultra.

it recognizes my email address but when it tries to install I get this message:

"an error occurred during authentication. please try again"

i would love to have the convenience of the mobile app. i have outlook on my laptop.