a) List the URL of your yahoo store xml product file, for example http://www.domain.com/objinfo.xml. You can also enter in your catalog.xml file. If you have merchant solutions, your import file is the one noted above, but can also use www.storename.com/catalog.xml . It should be noted that catalog.xml has variables that you may have defined in your store such as UPC, MPN and Manufacturer. These variables can help with placement within shopping engines, but are not required. By default, we recommend objinfo.xml because the store category information within catalog.xml is very sparse. Click Submit Changes.