An arbitrary alphanumeric unique ID, specified by the seller, which identifies each item. This will be used by the seller in the XSD file to refer to each item. Special characters in the sku needing encoding are: ':', '/', '?', '#', '[', ']', '@', '!', '$', '&', "'", '(', ')', '*', '+', ',', ';', '=', ‘ ’, '{', '}' as well as '%' itself if it's a part of sku. Make sure to encode space with %20. Other characters don't need to be encoded.

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

The Epoch timestamp

The vendor's digital signature, generated by running the JAR file or custom generation code

A unique ID required to access the API