Can't login to teams: authenticator generates too long OTP

Anonymous
2025-10-06T22:36:28.81+00:00

Hello @all,

i cant access my teams-account(s) with ******@custom8.de (yes, this info can be kept visible).

it asks for my authenticator OTP but i can only enter 6 digits, my authenticator generates 8 digit codes.
i guess i've set it up wrong.

but since i cant login, i cant change my authenticator settings.
there is no button to choose another login method, only authenticator.

on this learn.microsoft.com page i saw that i seem to have a personal and a company account, login is not possible in either of them. both ask for the 6-digit-OTP.

how can i get access to my account again, i can access the mail address of course.

currently, it should be teams free but I plan to buy a license since i need to work with others in a team.

thanks a lot

Microsoft Teams | Microsoft Teams Free | Sign up and Sign in | Sign in

Locked Question. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

4 answers

Sort by: Newest
  1. markus schnepf 0 Reputation points
    2025-11-01T21:10:19.0066667+00:00

    i changed the primary mail address of my personal account to my gmx address "******@gmx.net"
    when trying to login with it, it promts my windows security key token, i did never configured one...
    grafik

    Was this answer helpful?

    0 comments No comments
  2. Anonymous
    2025-10-07T00:12:51.75+00:00

    still same problem.
    i created a new alias with outlook.com, set it as primary and deleted the ******@custom8.de completely.

    i double checked the login information: yep it is gone.

    i opened a new incognito windows and tried to log in with ******@custom8.de
    (this time: no question if personal or work, GREAT!)

    but it still asks for the code.

    can't i just reset the MFA? i mean, it's my domain and i got access to all custom8 address (hosted at hosteurope.de)

    Was this answer helpful?

    1 person found this answer helpful.
  3. Anonymous
    2025-10-06T23:19:31.81+00:00

    okay then i messed up and created both accounts but only the 8digit is in my authenticator app

    when i visit teams.microsoft.com, I am instantly asked for my digit code.

    when i visit login.microsoftonline.com, i can choose between work and personal account.

    work asks again for the 6digit code
    clicking "personal" logs me in directly.

    but from there, i cant do much.
    my plan is to upgrade my teams account to "essential" to be able to join the team of a customer.
    but when i click on the tile "teams" it just opens
    https://www.microsoft.com/en-us/microsoft-teams/free

    clicking "sign in" in the top right corner redirects me to
    https://login.microsoftonline.com/
    and asks for the 6digit code again

    Was this answer helpful?

  4. EmilyS726 264.6K Reputation points Independent Advisor
    2025-10-06T23:10:20.5733333+00:00

    Hello,

    If your account is personal, it will ask for 8 digits code.

    If your account is org account, it will ask for 6 digits code.

    So, question for you, did you use this same email address @custom8.de to open both personal and organization accounts?

    OR

    When you sign into Teams, did it have a pop up asking you to choose personal or organization (typically it will provide you the name of the org too)?

    Was this answer helpful?

    0 comments No comments