I'm just getting started, and had my first sale and realized that i had to pay out of pocket for the shipping costs because Shopify did not charge the customer the entire shipping cost. Does anyone know how to correct this? I had to pay almost $.85 extra. :(
The amount that the customer is charged for shipping will depend on several factors. Primarily:
How you set up your shipping settings. If you're using calculated rates from Shopify Shipping, make sure your default package/box is set with accurate dimensions and weight.
Having accurate product weights in your individual product settings. If the weight of your product might vary from piece to piece, you may want to weigh several pieces and either use the average weight or the highest weight measured as the weight for your product.