Webhook helps in keeping subscriber’s activity data in sync with your system. Instead of having to poll our API constantly to check for updates, webhooks let you know the instant an event occurs or a response is received from the recipient. This might be someone unsubscribing, opening/clicking on email, bounce and even more. In short, Webhooks allow you to collect information about events as they happen in real-time. Provide a Call Back URL to receive data about events happening on your email campaigns, and we’ll send it to you as the events take place.