The subscription.created event is triggered when a customer completes the purchase or signs up for a trial of a subscription product on a platform that uses Digital River's services. This event marks a crucial point in the customer journey, indicating the initiation of a new subscription. It enables businesses to track the start of new subscriptions in real time by sending a JSON payload with detailed subscription information to the specified endpoint URL. This data includes the subscription ID, creation and activation dates, renewal details, and product and shopper information. Responding to this event can assist businesses in various operations, including inventory management, customer service, and targeted marketing activities.