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Knowledge Base & Operational DocumentationWhy Does an Ecommerce Checkout Lose a Discount After the Address Is Entered?
A discount may disappear when a customer enters a shipping address because the promotion is restricted by region, tax-inclusive threshold, shipping method, or customer group. The change can be correct but confusing if the rule is not visible.
What to check
Compare cart totals before and after address entry, coupon conditions, destination zones, tax calculation, shipping selection, and promotion priority. Reproduce with eligible and ineligible addresses and inspect the order summary breakdown.
Recommended next step
Make eligibility rules clear before customers invest time in checkout and ensure totals update consistently. Test regional and tax cases after any promotion or shipping configuration change.
How Informatix Systems can help
Informatix Systems provides ecommerce software and checkout optimization services. We can assess the affected environment, trace the problem through its dependencies, and help plan a practical improvement. Contact us with the system involved, when the issue began, and non-sensitive error details.