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Purpose

The purpose of the TIRTERMA exit is to control how fatal runtime errors are handled by the Dialog Manager.

Runtime errors are either fatal or non-fatal errors. When a non-fatal error occurs, such as invalid user input, the Dialog Manager displays an error message on the transaction screen. You can correct the error and continue processing the transaction.

When a fatal error occurs, transaction processing is terminated. The Dialog Manager executes a fail routine that backs out changes by performing the necessary rollbacks of the databases. The fail routine then calls the termination exit that determines what diagnostic (error) information is displayed and where it is displayed.