If you encounter an error while trying to sign into your Discord account that prompts "Enter Discord AUTH/BACKUP Code—Invalid phone number," this typically indicates a misunderstanding of the login process due to Two-Factor Authentication (2FA).
Understanding the Error: When you have 2FA enabled on your Discord account, the system requires an authentication or backup code to verify your identity during login. Entering a phone number instead of the required Auth/Backup code results in the error message indicating an "Invalid phone number." It's important to note that this message can be misleading—it's not an issue with your phone number but rather with the type of code entered.
Correct Action to Take:
Enter Your Auth/Backup Code: When prompted during the login process, ensure that you use the specific Auth/Backup code provided by Discord. This code is not your phone number but a separate code generated through your 2FA setup.
If You Can't Find Your Backup Code:
If you are unable to locate your Auth/Backup code or if you never set one up, you will need to follow the recovery process provided by Discord. This support link provides detailed instructions on how to retrieve or reset your 2FA codes.
By following these steps, you can effectively resolve the sign-in issue. It’s crucial to keep your Auth/Backup codes accessible and secure, as they are essential for accessing your account, especially with 2FA enabled. If you continue to experience difficulties, consider reaching out to Discord’s customer support for further assistance.