API Newsletter

January 2022 | View All

News & Announcements

Receive timely alerts for event changes in your catalog

We’re excited to announce the release of two new Webhook Event Types that can help optimize your operations and streamline your workflows. Sellers can now subscribe to the Inventory Out of Stock (OOS) and Offer Published Event Types to receive immediate notifications when inventory is out of stock, or when an offer is successfully published.

Plus, to ensure you never miss changes in your catalog, sellers can now fetch the Get Event Types API to retrieve an updated list of all current Event Types.

Learn more about notifications below and subscribe to these new APIs to help ensure your items are always available for purchase.

Learn more

Managing post-holiday returns and refunds

Keep customers happy during the post-holiday return rush by providing a seamless refund experience. For example, when handling refunds using the Refund Order Lines API, be sure to input the tax dollar amount to fully refund the customer. If you leave the tax amount empty, or with a zero value, the customer will not receive a full refund.


See example

Get insight into best-selling items on Walmart.com

Kick off the New Year by refreshing your catalog with new brands and products that customers love. Leverage insights from the Top Trending API to discover best-selling items in each department or category on Walmart.com.


See what’s trending

Boost discoverability with Item Spec 4.3

The start of a New Year is a great time to update your attributes so you can help optimize your catalog’s performance. We recommend using Item Spec 4.3, which has updated variant attributes so you can add all relevant attributes to your products and help increase your chances of being seen.


Learn more



View Seller Info API

Later this month, we’re making some improvements to the Seller Info API. Moving forward, the seller’s ‘Display Name’ which is displayed on Walmart.com, and the seller’s legal name, will be visible in Partner Configuration and Shipping Configuration GET API Responses.


Read API reference

Security & Privacy

Walmart protects your security and privacy. We will never ask for personal information (such as passwords or credit card numbers) in an email. If you receive such a request, please do not respond to the email.

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