Customers are required to have a http://b2b.holley.com/ account. Once the you sign into B2B (https://b2b.holley.com), you need to go to the Downloads menu and then right click on the “Available Inventory Report” and click copy link address. See screenshot . The link address contains your unique API key.
The link would look something like: https://b2b.holley.com/data/atp/?api_key=123abc456efg7h8i You will then copy the part after api_key= into the Holley connection in your settings.