Inventory not updating right 3.9

We noticed the inventory on one of our products it was not updating right. There were two times where there where two orders within a couple of seconds of each other and it's like one of overrides the others update. There are 2 examples below. Does anybody know why it would do this?

It is only showing one of the images here is the other.

Did you find any log while placing order ?

may be related to inventory?

Which version are you using?

Did you installed any third party plugin or any customization related to inventory?

sk5202 wrote:


I did not find anything in the logs.

Using nop 3.90

There are no plugins for inventory.

You should debug with your local environment.

try to identify different between both products.

afadeveloper wrote:

Make sure your product configuration is proper.

For track inventory, Field Inventory method is must set TRACK INVENTORY.

rajupaladiya wrote:

It is set to track inventory.

It happens in some circumstances where order loses orderitems. SOmetimes happens when impersonating a customer, and in this case you find orderitems in your account.
When orderitems are lost, they are more likely to be assigned to another order.
The solution I use when I suspect this behaviour is to investigate into the database: summing unitprice multiplied by quantity should mach the value of the cart for each order. Be sure to choose the right fields, you must test in subset known to check everything.