Now, you might want to enrich your data a little by adding additional information to the add-to-cart event. Gameball enables you to build a better, more interactive experience for your customers by configuring customized challenges or sending out relevant messages to them. In order to achieve such an experience, you may find it useful to send additional information along with your event body that better describes the event. The more metadata you send with the event gives you more liberty and options to design your engaging and interactive experience. Some useful information could be the product_id, category, price, etc.. .