Apologies; can't seem to see if this has been discussed before.
Basically, I'm setting up discount codes in advance of BFCM. Depending on the Collection, it will be 10% or 20% discount.
However, I want to exclude items already on Special Offer (my Specials are already pretty heavily discounted).
Is there a way to do this? I can't seem to see this & it would seem fairly basic?
I have upwards of 4,000 products on my store, so setting up a separate Collection (which did occur) is really not a runner if I can possibly avoid it.
Thanks in advance!