Walmart has announced that they will be deprecating their current versions of their API in favor of the new V3. All user's will need to update their integration before August 28th, the day the legacy versions are being shut down. To complete the upgrade, please follow the steps below;
1. Navigate to Settings > Storefront Setup > click into your Walmart storefront
2. Click the Update Walmart Integration button
3. The page will refresh and you will need to follow the provided instructions
4. Once all required fields have been filled out, click Save to complete the update!