HFZNDFUE must be written in assembler language. It is called by using the OS linkage convention.

HFZNDFUE might be called from HFZXCCEE or HFZXCX53, that is, from the CICSĀ® XPCABND Global User Exit (GLUE). It must adhere to the CICS rules for coding an XPCABND GLUE program. See the CICS customization guide for details. When you are assembling HFZNDFUE, do not use the CICS command-level translator.

The exit program must be: