> For the complete documentation index, see [llms.txt](https://support.backpack.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.backpack.exchange/exchange/security/2fa/fixing-google-authenticator-code-errors.md).

# Fixing Google Authenticator Code Errors

The most common fixes for OTP (One Time Pass) code issues:

1. Look for OTP code in your 2FA app **(not email)**.
2. Sync your 2FA app device and Exchange login device to **the same timezones.**
3. Do you have **multiple 2FA apps** downloaded? Make sure you're checking in the correct one.

**If you cannot resolve OTP issues after verifying the above solutions please reach out to Support via <support@backpack.exchange>**


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