Hi, I sell trading cards. My intention for posting was when I sold multiple different cards, I could send them in the same envelope. As so I can charge $3.30 for a tracked envelope or $8.50 for an express envelope. Unfortunately I found out I was charging $3.30 for each order individually, so for 4 separate items, I would be charging $13.20 when I just need the customer to be charged once. So I was wondering how to properly set-up my listings in a way where a customer can grab cards from multiple different listings from my store and just be charged once for postage (so 4 different cards/items, just one $3.30 charge for a tracked envelope).
Preferably would like to be told a way that I don't have to send an invoice as well, it is done automatically, like Chaotic factory does. Also a way to mass revise to apply this new setting to all my listings would be appreciated if there is a way.
I've been trying to find a way to do this but I can't seem to find a solution that is straight for my specific question.
Thank you!
