Authenticator app not showing code

Hello mbs234​ , Work accounts often use push approval with number matching rather than a rolling code. When the sign-in page shows a 2-digit number, open the app and type it in. If no prompt appears, check iPhone Settings > Notifications > Authenticator and make sure no Focus mode is blocking it.

Update the app, restart the phone, and try an incognito window or a different browser/network.

On "Sign in another way", check whether you also registered a text, a phone call or a security key.

If you have another admin in the tenant, they can fix this quickly in the Entra admin center: Users > your account > Authentication methods > Require re-register multifactor authentication. They can also issue a Temporary Access Pass so you can sign in and add a new method.

If you bought Microsoft 365 through a reseller or IT supplier, contact them. Partners often have delegated admin rights and can reset your MFA directly, which is usually the fastest route.

If you're the only admin, you'll need Microsoft's admin lockout process rather than the self-service chatbot. Go to support.microsoft.com, choose the business/work account option (not the sign-in one), and ask for an agent. If you phone, say you're the only Global Admin and you're locked out of your tenant by MFA. Just saying "MFA locked out" tends to send you back to the chatbot. They'll usually verify you as the owner by asking you to add a DNS TXT record to your domain, so have your registrar login, tenant name and a billing reference ready.

Once you're back in, register at least two sign-in methods and set up a second admin or break-glass account so one phone problem can't lock you out again.