Written by Modulr | Jul 24, 2025 11:00:00 PM
Webhook Notifications are automated messages sent from one application to another when a specific event occurs. In the payments industry, webhooks are used to notify merchants of payment status updates, such as successful payments or failed transactions. A Webhook (also called a web callback or HTTP push API) is a way for an application to provide other applications with real-time information. A webhook delivers data to other applications as it happens, meaning you get data immediately (unlike calling APIs where you would need to poll for data periodically).