If have to do as your request like below,to make sure can loading all the cartons and match the carton number show, I have to set more space left for safty space set up,and recalculate according the exactly carton size more carefully,to make sure all the cartons should load into the container, so will reduce more cartons from 1250,and finally finished loading, when we found have space left, we can't loading more cartons on and should let it go. Right?
As the numbers print on the carton are before produce, when finished loading, of course we can't revised the carton number on the carton.