What does a Change Listener do in Mendix?

A Change Listener in Mendix plays a vital role in managing and responding to data changes within your application's entities. When there are updates, deletions, or insertions to entity data, the Change Listener actively detects these changes. Following detection, it can trigger specific actions, such as executing microflows or updating user interface elements, ensuring that the application responds dynamically to data alterations.

This mechanism is essential for maintaining real-time data integrity and user experience, making it possible to react promptly to changes without requiring the user to refresh or navigate away from their current state. By leveraging a Change Listener, developers can build applications that are reactive to data updates, facilitating a more interactive and responsive application environment.