Hi,
Working on a multiple-websites/multiple-shop solution, I have found that there no way to filter the payment and shipping methods for each shop/website.
I think it would be usefull to have a way to select the payments and shipping option that will apply for a shop or website. Even better, it might be more flexible to be able to set them for each Shopping Cart module or for each cart context
The same goes for Sales Discounts. They are only filtrable by Website context or Shop Context.
Thanks.
Adrian