How to Troubleshoot CS-Cart Checkout When a Coupon Removes the Wrong Discount

Promotion priority, combination rules, customer conditions, or product eligibility can cause an unexpected discount to replace another.

Checks to make

Reproduce using a controlled cart, inspect coupon conditions and priority, check whether promotions can combine, and compare displayed and stored order adjustments. Change one rule in staging and verify edge cases before updating live promotions.

When to get help

CS-Cart support can trace promotion precedence and order totals. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.