Shopify Marketplace Connect

The app does not even have the basic required JSON fields for Walmart sync. It does not give you the option to add nor does it have the ability to pick it up if you create a metadata field within Shopify as a workaround. Therefore, you are left with attempting to List a product, but errors prevent it from syncronizing. After several emails and multiple tickets, I was told it was in the backlog with no timeline to fix. It's useless.