productDetails property

The main product details related to the event.

This field is required for the following event types: * add-to-cart * add-to-list * checkout-start * detail-page-view * purchase-complete * refund * remove-from-cart * remove-from-list This field is optional for the following event types: * page-visit * shopping-cart-page-view - note that 'product_details' should be set for this unless the shopping cart is empty. * search (highly encouraged) In a search event, this field represents the products returned to the end user on the current page (the end user may have not finished broswing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new SEARCH event with different product_details is desired. The end user may have not finished broswing the whole page yet. This field is not allowed for the following event types: * category-page-view * home-page-view