Hi @Seller_3tYkyftuIDoGG,

Steve from Amazon here, thank you so much for reaching out in the Forums. As @Seller_EkbLZUYSpmJEy has mentioned, Two-factor authentication is now required.

Starting as early as March 28, 2024, you’ll be required to verify your identity using a mobile number or authenticator app when you sign in to Seller Central. This keeps your account safe from fraudulent access attempts.

If you don’t already have a mobile number or authenticator app set up for two-step verification when you sign in, you’ll be prompted through a registration process to add a mobile device. If you prefer to not receive a one-time password over SMS every time you sign in, you can go to "Login Settings" to register an authenticator app for two-step verification.

An authenticator app is recommended for accounts with several users and can help when you’re without cell service.

For more information about authenticator apps and for two-step verification troubleshooting, go to the following help pages:

Two-step verification frequently asked questions

Two-Step Verification

Thanks @Seller_EkbLZUYSpmJEy for linking this News article!

Steve