The unique alphanumeric ID you assign to an item. Use the same value in every request that references the item, including your XSD catalog file.

If the SKU contains any of the following characters, encode them:

": / ? # [ ] @ ! $ & ' ( ) * + , ; = { } %"

Encode spaces as "%20". You do not need to encode any other characters.

The start of the last modified date range. Returns only inventory records updated on or after this timestamp. Use 24-hour UTC format YYYY-MM-DD HH:mm:ss (for example, 2025-06-01 00:00:00).

The end of the last-modified date range. Returns only inventory records updated on or before this timestamp. Use the same YYYY-MM-DD HH:mm:ss format as fromModifiedDate.

The maximum number of SKUs to include in the response (1–300). If you omit this parameter, Walmart returns up to 10 SKUs.

The number of SKUs to skip before Walmart starts listing results. Set to 0 to start at the first SKU.

Filter results by ship-node type.

• Only supported value is multichannel.
• Use this parameter only if you are a multi-channel seller.
• When you send shipNodeType, you must also send sku. All other query parameters are ignored.
• sku can be a single value or several SKUs separated by commas (for example, "sku1,sku2").

The access token retrieved in the Token API call

A unique ID to track the consumer request by channel. Use the Consumer Channel Type received during onboarding

A unique ID which identifies each API call and used to track and debug issues; use a random generated GUID for this ID

Walmart Service Name