Which type of event is essential for triggering reactions in ServiceNow?

In ServiceNow, custom events play a crucial role in enabling developers to trigger specific reactions based on predefined conditions. These events allow for greater flexibility within applications, as they can be created to suit particular business needs or workflows that are not covered by out-of-the-box solutions.

While system events and notification events are important, they generally pertain to predefined scenarios. System events deal with internal system operations and changes, while notification events focus on triggering alerts or messages based on certain activities within the system. API events refer to interactions that occur through application programming interfaces, which can be useful for integrations but do not directly relate to triggering internal workflows or reactions within the ServiceNow platform.

By utilizing custom events, developers can capture unique business processes and implement automated responses tailored to those specifics. This capability is essential for creating dynamic applications that can adapt as requirements change, thus enhancing the overall functionality and responsiveness of the ServiceNow environment.