FAQRequired headers and requestsWhat headers are required for Walmart API calls? All API requests must include required headers such as access token, correlation ID, consumer channel type, and service name. What is a correlation ID and why is it important? It is a unique identifier that helps trace and troubleshoot API requests. Updated 3 months ago Authentication and authorizationSupplier One and third-party app connectionsDid this page help you?YesNoWhat headers are required for Walmart API calls?What is a correlation ID and why is it important?