Hi Dave,
It should not print simultaneously.
It will print based on Legal Unit.
2 printer names were shared by business. one is for warehouse and another printer is for plant.
The ware house is attached to the same plant.
So not sure how to differentiate between warehouse printer and plant printer in GTS system --Customs Management>>>Master Data>>>Configure Printer Determination, to set up default printer based on LU.
Thanks & Regards,
Shilpa