Technically detaxe in France requires items to be in original packaging. Sometimes they adhere to this.Just left Amsterdam 3 weeks ago. they did not check. but they were checking middle eastern people. (not racist here. LOL. )
yes they do check.....in france. I just had to show them the products not the box. it is when entering the states. when you have all those box might create a problem in customs. if they pull you. that is why i shipped all the boxes.
Boxes should not cause any issue in US customs at all?! Surely it is normal to have products in their boxes.