# Verification code troubleshooter

Four questions, one likely cause, one fix.

## Why is my verification code not working?

Either it never arrived (wrong number format, number type rejected by the app, carrier delay, app rate limit) or it arrived and was refused (expired, typed wrong, generated for a previous request). The troubleshooter walks you to the specific case.

Source: https://smsnitro.com/tools/verification-code-troubleshooter