IMS Spool API
The IMS Spool API support provides feedback to the
application program when IMS detects errors in the print data
set options of the CHNG and SETO calls.
For convenience, your application program can display these errors by sending a message to an IMS printer or by performing another action that lets you examine the parameter lists and feedback area without looking at a dump listing. This information applies only to the calls as they are used with Spool API support.