Our sales all come with either flat-rate shipping or "free". With flat-rate, the buyer only gets charged for shipping on one item; for further items there is no shipping cost.
When buyers pick only items with a shipping cost, the system correctly calculates the flat-rate shipping.
When buyers only buy one or more items with "free" shipping, the system correctly charges "0" for shipping.
However, when buyers buy items from both categories, the system adds a shipping cost.
Anyone know how to correctly program this?
Cheers
Bernie