#discounts

Troubleshoot promo code issues. Checklist: 1. Verify code spelling and case sensitivity. 2. Check expiration date. 3. Confirm minimum purchase requirements. 4. Verify eligible products/categories. 5. Check for one-time use restriction. 6. Ensure not combining with other offers. 7. Manually apply if valid but system error. 8. Offer alternative discount if code expired. Resolve quickly to prevent cart abandonment.