So for example, we want to run a promotion with triple points on a brand for one weekend, but we have some clearance items from that brand on sale with 30% (or more) off, giving triple points on that transaction is great for the customer, but we make nothing and potentially lose money on that transaction.
The secondary filter at present only seems to allow me to include items, not exclude them.
A tertiary "negative" filter for exclusions could be useful in making rewards an even more powerful tool for driving sales.