If you cannot provide a UPC or GTIN for your products you will not be able to list your products on this engine.
SingleFeed only supports a product feed at this time, feeds regarding stores and locations will need to be submitted manually by users.
Register Here - http://retailers.shopsavvy.com/
Click "New Dataset" and name your feed/dataset, click save.
Click on your new dataset from the list and click "Manage automatic importing".
Paste in the URL from the Engines tab of your SingleFeed account for ShopSavvy. Set "Update Frequency" to Daily and click Save.
Your data feed will be imported automatically by ShopSavvy every day.