invalidate discount coupon for already discounted items

[shags38]

Hi,

how can a discount coupon be negated for an item that is already on special?

I have not read every post in the thread but have gone through many and cannot see what I need.

cheers,
Mike

[Ajeh]

The best solution is to add the Products on Special to the Restrictions for the Discount Coupon ...

The code could also be customized in the functions_general.php for the function is_product_valid and test the Product to see if it is on Special and not allow it ...

How many Products do you have on Special?

Do you use SaleMaker? If so, that would also need to be tested for as Sales with SaleMaker and Specials are different ...