The PCF conversion program installation exit (CSFCONVX) is called at three points during processing of the conversion program:

• During conversion program initialization. This is known as the conversion preprocessing invocation. At this point, you can use the exit to change the ICSF CKDS header record installation data field.
• During conversion program individual record processing. This is known as the record processing invocation. At this point, the conversion program is converting the PCF entry but has not yet placed the entry into the ICSF CKDS. You can use the exit to change the installation data field in the entry for the ICSF CKDS. You can also specify that the conversion program not place the entry into the ICSF CKDS.
• Just prior to conversion program termination. This is known as the conversion postprocessing invocation. At this point, like the preprocessing exit point, you can use the exit to change the ICSF CKDS header record installation data field.