Backup codes are provided when you successfully complete setup of your 2FA preferences in NetSuite.
These codes are associated with your email address and are unique. You are the only person who can use these codes. A backup code is used for verification on login. Each code can be used only one time. You can generate new backup codes as needed. If you generate a new set of backup codes, the previous set of your codes is no longer valid.
To generate backup codes:
You can generate ten new backup codes if you use all your existing backup codes, or if you lose them, or if you feel your existing codes may have been compromised. Generating new backup codes invalidates your previous codes.
Find the Settings portlet on your Home page.
Click Generate Backup Codes.
Enter your password. You might also need to enter a verification code or backup code.
Ten backup codes are displayed.
This is the only time these unique ten codes are displayed in the UI. You cannot retrieve these codes from the system after you leave this window. If you lose these backup codes, generate new ones. Use the link in the Settings portlet. You may need a backup code if, for example, you must set up a different phone.
Click the printer icon to print the backup codes, if desired.
Treat backup codes as securely as you would treat a password. Do not store your codes with your device.
Click Continue to return to the NetSuite UI.
Each time you use one of your backup codes, you receive an email notification that one of your codes was used.