Yes, most of our merchants are very interested in running exclusive campaigns with publishers and will reach out to you directly with customised offers. It is always worth involving the merchant in your planning because they know their assortment best.
Tip: Are you not looking for an exclusive campaign, but still want to find products with discount? Just use the “Reduced Price” filter in the inventory tab and see all products that are currently offered with a lower price. Just keep in mind that the sales price can disappear without you noticing.