Walmart Marketplace Product Setup

I already have an active Walmart Marketplace seller account, but the item I want to add—a home / kitchen / beauty personal-care product—still needs its core identifiers and polished listing details. I don’t yet have a valid barcode, so I’ll need a new GS1-compliant GTIN (UPC or EAN) created and properly associated with a unique SKU.

Once the identifier is in place, I’d like you to prepare everything Seller Center requires: optimized title and description, key features, attributes, images mapped to the correct slots, and the completed Excel or bulk-upload template if that is the fastest path. The end result should be a listing I can publish immediately without error codes. Experience with GS1, Walmart Item Spec, and retail SEO is important here—please outline how quickly you can secure the barcode and return the ready-to-upload file.