Microsoft Authenticator is asking me to authenticate using Microsoft Authenticator to use Microsoft Authenticator

I had the same issue.

The solution to this is that for the first login time, your IT admin should be able to add your mobile number to the work profile details, in order that additional methods (SMS or call) can be used to get authenticator logged in and running.

Once you go to that login screen in Authenticator, add work profile, type password, then before it takes you to that unhelpful infinite loop of "authenticator requiring number from authenticator", click on "I can't use Authenticator right now" option (or worded something to that effect) and there should be a new option for sending authentication number to SMS. By default this won't have been possible previously, and you can't add this option by yourself I believe, but your IT admin can add your mobile number to your outlook work profile and also SMS as an authenticator measure.

Once you use the SMS received number to log in, then you should be sorted.

This worked for me, you absolute legend!

I have an odd authenticator issue. When I log into my account on the computer, I get the standard MS Authenticator prompt with the numeric code. I get the pop-up on my phone and enter the code and answer "yes". Then the account appears to process me for entry but then I get a second MS Authenticator prompt with another 2-digit numeric code telling me to open the Authenticator app on the phone. But this time I don't get the pop-up and when I open the Authenticator app I am not prompted to enter the 2-digit numeric code. So I end up going back to the account on the computer and selecting "I don't have access to my Authenticator App" in order to get a code sent to my phone via text. That works. This happened when my Authenticator App locked up and I had to completely delete it and reinstall the App. I also tried deleting the Account on Authenticator and reinstalling it and that hasn't helped either. Has anyone else had this problem?

I had this issue and was able to fix it with this method:

In my case I had my account set up to authenticate on another device already (personal phone) so when I tried to set it up on my work phone, it put me in the authenticator loop. What I ended up doing was using this page:

https://support.microsoft.com/en-us/account-billing/set-up-the-microsoft-authenticator-app-as-your-verification-method-33452159-6af9-438f-8f82-63ce94cf3d29

It took me to the list of methods I had already installed. I deleted the authenticator method connected to my personal phone, then added a new authenticator method - it gave me a QR code to scan on the authenticator app to sign in and it set up and worked great!

I hope this helps some people because it was a very frustrating few days....

Its an ongoing issue since more than 2 years, Yes I had an old phone that died, it had microsoft authentificator, And now when I try to login it ask me to provide the authentificator code from my dead phone, amazing !, it could litterally just have asked me email verification, many solutions are possible, most of my friends have the same issue, but hey, microsoft didn't do anything since TWO YEARS on this problem, nothing has changed, nothing has been fixed.