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...

[samgold]

Hello all,

A vexing problem.
We like to create sets of products and offer a small discount for buying the whole set all at once....

[delcorsets]

It would be very beneficial to have control over price group discounting at the Category and Item Level. For example default Wholesale Price Group gets...

[delcorsets]

I'm trying to find a module for creating price groups for several different customer types... retail (no price group, standard retail pricing), wholesale...

[Asim77]

I need to set a discount by customer. So when a logged in customer orders, they get a discount, but I want that discount to be at checkout.
...