@UKPreppingShop I had to leave shopify for this reason. All my customers are international. If all my business was in NZ it would have been great but I ship regularly to different countries. 

That's great and what I am doing as my art collectors are global. However, how do you determine shipping cost without knowing how much final order will actually look like. I can put items of 0-1.5 kg at a certain price, then 1.5-3 kg cost depending o...