Where must a global error handler be specified to catch all errors from flows that do not have their own error handlers?

A global error handler must be specified in a global element to catch all errors from flows that do not have their own error handlers. Placing the global error handler in a global element allows it to be accessible across the entire application. This means any errors that occur in flows without specific error handling logic will be managed by this global handler.

By defining it in a global element, developers can ensure a centralized approach to error handling, which simplifies the management of unexpected issues and enhances the overall reliability of the application. This helps maintain consistent error handling behavior across different flows, which is essential for effective troubleshooting and user experience.

The other options do not serve the purpose of defining a global error handler in the context of MuleSoft applications:

• The configuration properties file is used for externalizing configurations and not for defining global error handling.

• The pom.xml file is associated with Maven and focuses on project dependencies, build configurations, and plugins rather than flow error handling.

• The mule-artifact.json file serves as a metadata file for defining application configurations but does not specifically deal with global error handling mechanisms.