If a product does not upload successfully it will appear in Catalogue > Drafts. In Drafts the products can be filtered by issue (e.g. missing information, qualification requirements) and the data can then be either directly on the product product list or by editing the products. Once the require information has been added the item will go live
Certain categories and brands require permission to sell. To apply for a brand/category go to Catalogue > selling application and search for a product within that category/brand by ASIN or EAN. Click to apply and then product the requested information.