Automatically apply a coupon when certain category items in cart?

[HGordon]

Consider you have CAT-A(with subcats) and CAT-B(with subcats).

I'd like to offer 25% off all products in CAT-B when any product from CAT-A is purchased.

Anyone have an idea of how to accomplish this?

I have the toolkit, so can test to find a product's categories.

i've got the coupon module and have a coupon set for 25% off CAT-B(and subcats) products.

could i test the items in the cart to see if they are from CAT-A and if so
then test for CAT-B products and apply coupon?

store --> http://www.fabricsandbuttons.com/Mer...SS&Screen=SFNT

[Kent Multer]

Re: Automatically apply a coupon when certain category items in cart?

Here's a module that can do this:

http://www.vikingcoders.com/store/merchant.mv?Screen=PROD&affiliate=magicm&Product_Code=MAGIC_UPSALE5