PromoBeacon: Discount Alerts

PromoBeacon checks the discounts on new orders and learns what normal promotions look like for your store, starting with a scan of your recent order history. It flags unusually deep or large discounts, unexpected code stacking, promotions covering far more items than usual, and codes used far more than normal, and explains why. It's read-only: it never edits, blocks, or creates discounts. Later order edits aren't checked, and one-off manual discounts build less history.