An Introduction to IMS: Your Complete Guide to IBMs Information Management System

Using exit routines, you can:

• Edit messages

• Check security

• Edit transaction code input, message switching input, and physical terminal input and output

• Perform additional application clean-up

• Initialize dependent regions

• Control the number of buffers that the RECON data sets use

• Keep track of updated segments

You can write or include additional routines to customize your IMS system.

You can replace a default exit routine that does not meet your needs by writing one of your own. If you use IMS macros in your exit routine, you must reassemble the routine with the current release level macro library.