How to solve cubing, batching, and routing problem together?
First, you need to understand how you are going to pick. That means, in one tote, do you want only one order or multiple items of different orders can end up into one tote. If it is latter, is there any sorting or consolidation area to separate out?
Is it like one order must go into one carton?
After we have those answers, I would always prefer first cubing and then, according to our strategy, pick them, and for the optimal path, obviously use VRP.
Prefer using https://or.stackexchange.com/