The one thing to remember: this is a UI demo, not a Postman demo. Ganga wants to see a seller do each task inside your website — "show the item life cycle in your website", "how the error message is displayed to the sellers", "show Feed IDs to the seller". The raw request/response proof was the earlier Verification Phase (the validation .txt bundle — already submitted).
Run the whole call on walmartpilot.sku.io — the pilot tenant connected to the real Walmart seller (partusa). Log in and select the "Walmart Pilot (partusa)" account. Part A (OAuth + item lifecycle) is performed live — real feed IDs, real errors. Part B (orders/returns) is a UI tour of the pilot's own Orders and Returns pages: the pilot's orders are already in terminal states, so rather than a live acknowledge/ship on camera, walk the pages and the action controls and note the write-actions are validated in the sandbox captures Walmart already has. No tab-switching, no sandbox login.
Ganga's centerpiece. Start here — it frames the whole "seller's perspective" demo.
Stay on walmartpilot.sku.io. The pilot's orders are already in terminal states, so rather than perform a live acknowledge/ship on camera, tour the pages and the action controls and note the write-actions are validated in the sandbox captures Walmart already has (in the bundle you sent Ganga). This is a walk-through, not live writes.