.

soss-system/src/main/java/com/soss/system/service/impl/CouponUserServiceImpl.java

@@ -268,6 +268,8 @@ public class CouponUserServiceImpl implements ICouponUserService {
             if (couponVo.getType().equals(CouponCategoryType.DISCOUNT.getType())) { // 折扣
                 discountAmount = orderDetail.getOrigDiscount(); // 折扣使用折扣价（非特惠价格）
                 discountAmount = this.getDiscountAmount(discountAmount, couponVo.getPriceDiscount()).min(BigDecimal.valueOf(50));
+            } else if (couponVo.getType().equals(CouponCategoryType.FREE.getType())) {
+                discountAmount = orderDetail.getOrigDiscount(); // 免单使用折扣价（非特惠价格）
             }
             couponVo.setCouponAmount(discountAmount);
             couponAmountMap.put(orderDetail.getSkuId(), couponVo.getCouponAmount());