Which statement about the error handler flow is accurate?

The statement that the error handler flow is invoked if the error is unhandled elsewhere is accurate because the primary purpose of the error handler flow is to catch exceptions that escape from other parts of the application. When an operation encounters an error, Pega will first attempt to handle that error through any specific error handling mechanisms that may be in place. If none of these mechanisms successfully manage the exception and the error remains unhandled, the error handler flow will be activated. This approach allows developers to centralize error handling logic, thus providing a systematic way to deal with unforeseen issues that may arise during the execution of cases.

This understanding highlights the utility of the error handler flow within Pega, demonstrating its role as a fallback option that ensures errors can be systematically logged, reported, or remedied regardless of where they originate in the application.