System should not allow already used serial numbers against material in production order

Hi  Experts,

I have issue with serial numbers usage in production order.

Even serial number is unique with material code, system accepting already used serial numbers during production order creation if the serial number status is available.

Pls find the below screen shots for your reference along with configuration .

So our requirement is , as serial number is unique with material code, it should not allow to reuse against the same material.

Now I am creating production order for the same material code

during serial number assignment , system will assign new serial numbers by clicking on create serial numbers automatically

but if I change the serail number 1867 with already used serail number 1866 , it is accepting

Now we can see the serial number history : it is assigned against two orders

So our requirement is , as serial number is unique with material code, it should not allow to reuse against the same material

OIS2

Regards

Satya