This guide is designed for users having issues with outlook or other clients after Multi-factor authentication has been enabled. Typically users will be requested to input their password repeatedly into Microsoft Apps.
This affects only a small portion of users and it’s because of settings unique to your client/computer.
The easiest fix for this is simply to inject a unique “app password” into the client that is prompting for a password repeatedly.
To do this:
Sign into your office 365 portal by visiting https://portal.office.com
Once logged in please click the following link or copy and paste it into a new tab
You will be greeted with the following screen. Click on Create:
Now, name your app password to reflect your client/device (For Example Desktop-Outlook)
Copy the unique password created for your client and paste it where the app is asking for the password:
Your Outlook (or client) will work normally now.