Hello,
I am not familiar with Matrix Powerpro, but if I understand correctly:
- you design the label in the software Matrix Powerpro
- upload it into R/3
- and print the spool from R/3 into a file printer.
If that is the intended flow, then SAP Note #179534 - "Label printing using Zebra printers (SAPscript)" describes how this can be done - although with the BAR-ONE software.
Alternatively, you can also check SAP Note #750002 - "Support for Zebra label printers (ZPL2)" which describes how ZPL code can be generated from R/3 (and without the use of external software).
Best regards,
Laszlo