How to modify the code so that items doesn't go above each other

[MorjanM74]

We have a scenario where the items box contains glasses and we don't want boxes to be above each other, the top of the box should be empty, could you please help me solve this problem.

[luenib]

Make sure those boxes are the last ones to be packed.

Start by marking the boxes as "fragile" so when the packer tries to evaluate a fragile box it will skip it unless fragile boxes are the only boxes to be packed.

I don't know If it's a good idea to start packing fragile boxes at the top of the pallet, but when you start packing them in an empty pallet, make sure nothing else is packed above 0 of the Y coordinate. If there's no more room at Y=0, that's when you open a new pallet.