The package gets weighed before sending and after receiving. There were a lot of articles years ago speaking of people who put stones in the package and sent it back, received the money and someone else got a package with rocks
I had a return recently where they opened it due to “lack of bubble wrap” and put more in. That wouldn’t change the weight much but if they used something else it could. So there is then drop off weight, ship weight, and receive weight
The package gets weighed before sending and after receiving. There were a lot of articles years ago speaking of people who put stones in the package and sent it back, received the money and someone else got a package with rocks
I had a return recently where they opened it due to “lack of bubble wrap” and put more in. That wouldn’t change the weight much but if they used something else it could. So there is then drop off weight, ship weight, and receive weight