post https://marketplace.walmartapis.com/v3/feeds
Use this API for initial item setup and maintenance.
This API updates items in bulk, allowing you to update up to 10,000 items at once. Updates with more than 10,000 items are not supported. To ensure optimal feed processing time, keep feed sizes below 10 MB, except for FITMENT_ACES and FITMENT_PIES feeds, which support files up to 50 MB.
You can use the Bulk Item Setup API for any of the following item spec versions, just specify the corresponding feed type as a query parameter:
- Item spec version 4.8 or 5.0.20250121-19_24_23 feed type: MP_ITEM
- WFS Item spec version 4.3 or 5.0.20250121-19_24_23 feed type: MP_WFS_ITEM
- WFS Maintenance spec version 4.8 or 5.0.20250121-19_24_23 feed type: MP_MAINTENANCE
- Set up item by match 4.1 or 4.2 feed type: MP_ITEM_MATCH
- Convert an existing item to WFS 4.5 or 5.0.20250121-19_24_23 feed type: OMNI_WFS
- For Fitment feed type FITMENT_ACES and FITMENT_PIES, zip file needs to be added in the request body. When uploading the fitment feeds, it is mandatory to add a boundary parameter in Content-Type header. For example, Content-Type: multipart/form-data;boundary="----custom boundary". Without a boundary parameter, fitment feeds will fail to process. For details refer to the guide link below.
You can download the request body sample from the items feed zip file.