Hi James
My first queue is do you wana to pack before GR or after GR.
If you wana to pack before GR. Then try to do same operation on dextop screen and then need to create zcode for RF screen.
If you wana to do after GR then SAP support that via POSC.
Now If you wana pack and GR same time. Then call GR PPF same time of RF unload and packing activity. So how to achieve this First unload activity in GR area. At the same time call screen/program for creating pallet HU and then pack according to your need.
I hope it has to go with technical/program enhancements.
Regards
Suraj