Help CenterHelp Center / Discounts and marketing · Reference
Choose between classic coupons, a test run and the discount engine, and how several offers are picked.
Discount settings decides how your shop calculates discounts. A shop that never chose a mode uses the platform's default. While that is classic coupons, discount rules do nothing until the owner switches.
| Mode | What customers get | Use it when |
|---|---|---|
| Classic coupons (legacy) | Coupons work as they always have. Discount rules are saved but never applied | You only use coupon codes |
| Test run (shadow) | Still classic coupons. The engine also runs on a sample of checkouts and records any difference | You want to check before switching |
| Discount engine | Coupons and discount rules together: automatic offers, codes, free delivery, gifts, stacking. Invoices show each line's discount | You want discount rules to apply |
Test run results (last 7 days) shows how many checkouts were compared, how many had a different result, and how many errors. "No difference" means switching to the discount engine changes nothing for your customers' coupons.
The test run compares coupons only. It does not preview your discount rules; use the preview in the rule builder for that.
| Option | How it picks |
|---|---|
| By priority | From the highest priority down, each offer is taken if it combines with those already taken. You decide the order |
| Best for the customer | The combination that saves the customer the most is chosen, among the most valuable offers |
More detail in How discounts combine at checkout.
An order that the discount engine priced keeps its offers when it is edited later, even if you switch back to classic coupons or your plan changes.