I have a client that is using the Yahoo cart and USPS priority mail/parcel post for shipping.
If they were using UPS, things would be really easy because it appears that Yahoo has an interface with the UPS shipping rates.
From what I can see, about the only way to do this is to set up rules based shipping rates. It looks like I'll have to go to the USPS site and pull the rates and then enter that into the rules tables in Yahoo. I think it's about 20 different zones that will have to go in for both Priority and parcel post.
I was just wondering if there was any easier way to do this? My guess is I'm just going to have to sit down and crank out the rules.