'The cart id is the same as the product id. If you won't define the Catalog id in the database then after importing the database into the catalog it will automatically generate the catalog id and Item group id as same as Product id. '
I think that Meniar does not talk about the import of catalog , but the import of user event and specially teh event 'shopping-cart-view'. If w're gonna map the product-id with the filed card-id for the event shopping-cart , what would we do if we have many products in the shopping cart ?
and for Meniar's last comment ,I was also wondering if cart-id is some used to categorize the shooping cart . For exemple , if we have mobiles devices in the shopping cart , what could the value of the filed cart-id be ? carte-id="mobile" for exemple ? ,or if the shopping cart contains some accessories , what may the value of cart-id be ? cart-id='accessories ' ? . Now in the case of shopping cart that contains 2 type of products , what value should the cart-id field be ?