I am trying to know that which plugin or observer will work perfectly while saving order data in sales_order table. Actually i am trying to debug a scenario where only for one order, Grand Total < SubTotal in Admin Order Grid. Means it's mysteriously discounted an Order without applying a coupon.

This case only for one order from >1000 orders but not able to reproduce this issue once again until it will not reproduce.

If any help will be appreciated.


1 Answer 1


If you don't use any third-party extension which provides custom discount then obviously.

there are two way Cart Price Rule rules on cart items. One is a coupon and another is No Coupon. See detail https://docs.magento.com/m2/ce/user_guide/marketing/price-rules-cart-create.html#step-2-describe-the-conditions

I guess that Cart Price rules can be automatically applied to your cart item. In order to debug the rules, disable all Cart Price Rule rules which is NO Coupon.

  • okay i will check and update you. Thanks for answer. Commented Mar 17, 2020 at 7:55
  • All Cart Price Rules are with Coupon only. There is no rule without coupon. Commented Mar 17, 2020 at 8:26

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