The manual states &PRM is Print file print-mode.
1. What does this parm represent?
2. Where does CA Spool pull this parm value from?
3. How does Spool determine what value to place in the filename for this parm?
Release : 14.0
Component : Spool
The &PRM variable will contain the PRMODE attribute of the Spool file.
For example, if the file is the output of an AFP to PCL transformation, PRMODE=PCL so the variable &PRM will be "PCL" as well.
For A2PD (AFP to PDF) transformations, the output file will have PRMODE=PDF.