I have this same issue in NB Store 2.3.4. We use the category discount to have a running discount so the consumer sees a Regular price and then the current On Sale price. But we then want to offer a special promo on a couple of products in a sub-category. That's why we want to apply multiple category discounts to some products...and the Allow Multiple checkbox option (along with documented functionality) states this should work, but it doesn't.
In general, the whole Category Discounts is very buggy. If you have
Parent
Then if you add the product to the Parent category as well, then you get the product listed twice in the product list results. I've also had various other problems with the category discounts after they are originally set up and working (after work arounds to the above issues). Then after some time, I'll get the sale pricing doesn't show up on the product list or detail pages, or the sales prices shows up, but once you go to the cart, the discount isn't there. You have to go in and manually run the Calc Sales Prices to get it to reset. We get some users who report this, but likely 80% of them just leave the site and we lose sales.
Very frustrating.
In general, the whole Category Discounts is very buggy. If you have
Parent
- Child 1
-
Child 2
Then if you add the product to the Parent category as well, then you get the product listed twice in the product list results. I've also had various other problems with the category discounts after they are originally set up and working (after work arounds to the above issues). Then after some time, I'll get the sale pricing doesn't show up on the product list or detail pages, or the sales prices shows up, but once you go to the cart, the discount isn't there. You have to go in and manually run the Calc Sales Prices to get it to reset. We get some users who report this, but likely 80% of them just leave the site and we lose sales.
Very frustrating.