Share via

Maximum accounts Authenticator

Nathan Nijdam 0 Reputation points
2026-03-31T09:37:19.2566667+00:00

I am using the Microsoft Authenticator a lot but I have now run into a problem. I can’t add anymore account to the Authenticator if I try to scan a qr-code the camera stays black and if I try another way, the app just keeps loading without going trough. I have a total of 300 account in the Authenticator.

Does anyone know why this happens?

Microsoft Security | Microsoft Authenticator
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Q&A Assist
    2026-03-31T09:37:35.1533333+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The described behavior is consistent with hitting practical or technical limits in Microsoft Authenticator when managing a very large number of accounts, especially if the app or device is under resource pressure.

    To address this:

    1. Update Microsoft Authenticator to the latest version. Older versions are not supported and can cause QR scanning and loading issues, particularly when adding accounts.
    2. Check device connectivity and settings:
      • Switch between Wi‑Fi and mobile data.
      • Ensure Airplane mode is off.
      • Make sure the device date and time are set to automatic and correct.
      • If using a VPN, disconnect and try again.
    3. Optimize Authenticator performance:
      • In Authenticator, go to Settings and turn on App updates.
      • In Settings, select Turn off battery optimization for Authenticator.
      • In Settings > Notification Settings, ensure Show notifications is turned on.
    4. Verify QR scanning specifically:
      • Ensure the latest Authenticator version is installed; current versions are required for QR-based account addition.
      • If the camera view remains black, try the “enter code manually” option where available, as documented for QR-based setups.
    5. If issues persist at ~300 accounts:
      • Remove any inactive or unused accounts from Authenticator to reduce load.
      • Then try adding the new account again.

    If, after updating and optimizing the app and device, QR scanning still shows a black screen and manual addition never completes, contact Support or the relevant IT admin (for work/school accounts), as this may indicate a device- or tenant-specific issue rather than a normal usage pattern.

    References:

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.