EARLY ACCESSTwinNumber is launching soon. Reserve your spot for a U.S. mobile number.

Use TwinNumber with Walmart Marketplace.

Selling on Walmart Marketplace from outside the U.S.? Use a real U.S. mobile number on your seller account and for the verification codes that keep your store secure.

Tested and working
What we tested
Receiving SMS verification codes
Line type
Mobile
Last tested
Oct 22, 2026

We re-test Walmart Marketplace regularly and update this date.

What Walmart Marketplace uses your number for

  • Each Seller Center user sets up their own 2-step verification: text, email or an authenticator app.
  • Text codes go to the phone number associated with your account and stay valid for 10 minutes.
  • Admin users add, edit or delete the account contacts on the Manage contacts and roles page.

Add your TwinNumber on Walmart Marketplace

  1. 01

    Open My Profile

    In Seller Center, select your name at the top right and choose My Profile.

  2. 02

    Edit the channel

    Scroll to Channel for 2-step verification, select Edit and confirm your identity on your current channel.

  3. 03

    Choose text

    Pick Text as your channel, enter the code sent to your phone and select Verify.

Why the line type matters

Marketplaces often check whether a number is mobile, landline or VoIP before sending a code, and many turn VoIP numbers away. TwinNumber numbers are registered as mobile.

Why banks reject Google Voice →

Questions

Do I need a U.S. number for Walmart Seller Center text codes?

Walmart's guide says text authentication is available to sellers with U.S., Mexico, Chile and Canada phone numbers. Otherwise you can use email or an authenticator app, or get your codes by text on a TwinNumber.

What does Walmart Marketplace ask for when I apply?

Walmart's guide lists a business tax ID or business license number (an SSN isn't accepted), documents that verify your business name and address, and a U.S. warehouse with returns capability, or Walmart Fulfillment Services instead.

Do I need to live in the U.S.?

No. TwinNumber works from 150+ countries with just a browser and an internet connection.

Is TwinNumber affiliated with Walmart Marketplace?

No. We test our numbers with popular services and publish the results. Walmart Marketplace is a trademark of its owner.

What if a code doesn't arrive?

Request a new code, then check your inbox and notification settings. If it keeps failing, contact us and we'll look into it.

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Ready for Walmart Marketplace codes?

Join the waitlist and be among the first to get your U.S. mobile number.

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TwinNumber is launching soon

Join the waitlist to be among the first to get your private U.S. number.