Grouped Products not supported?

Are grouped Products supported or just simple products? If you have a T-Shirt product that is a group of a small, medium and large sizes. Can you just add the top grouped item to the sale?

I tried, but had to end up adding the smoke items instead.

Hello,

Unfortunately, adding the grouped product to the campaign will not result in a discount of the child products. You will have to separately add the child products to the campaign in order for them to get the discount.

Hope that helps!