I am selling perfume plus other items in the united states. Perfume is considered a hazardous material and there are limits to how I can ship the item. My question is is I set up rates for my empty travel bottles and jewelry, then a different shipping rate for the bottle. How does shopify know?
Example
Someone orders a perfume bottle but also a travel bottle, how does shopify know what to charge for shipping?
The travel bottles will be in a bubble mailer unless someone buys the perfume. At that point I would have them in a shipping box together, which would change the shipping cost and method.