UPDATE: 10/20/17. As of November 1, 2017, Amazon will require all seller accounts to set up two-step verification. This includes any VA accounts associated with your seller ID as well.
If you do not set up two-step verification, you will lose access to your seller-account, effective November 1, 2017
Set up two-step verification on all devices used to login to Amazon.
VA accounts or any other people accessing your seller account must also be set up with two-step verification.
Required Two-Step Verification Devices
Two-step verification requires a primary and backup verification device:
How to Set Up Two-Step Verification
This two-step Verification Tutorial is structured using an Authenticator App as the primary verification method. Amazon does offer the option to use your cell-phone as the primary authentication method.
If you choose to do that, the process is the same, but the cell phone and Authenticator App steps are reversed. Amazon walks you through this during setup.
The RED numbers on the images below, walk you through the process step-by-step.
Begin by logging into your Amazon seller account. If you have not set up two-step verification on that device, you will see the message below:
This content was originally published here.