SD: Changed Sales Order quantity does not update net value of line item

[peter_wallner2]

Dear experts,

We create a Sales Order Return with reference to a billing document and reference only 1 line item. So the Sales Order Return will only have one item from the original billing document.
We want to change the quantity though for the repspective item, so the quantity copied from billing document is modified from 10 EA to 5 EA for example.

In our TEST system the net value of the line item is automatically adjusted when the quantity is adjusted. This is what we want.
In our LIVE system though the net value is not adjusted automatically.

When I look into the line item condition detail I see the following:

But in PROD the amount fields are non-editable and the Cond.control field = E:

I don't know how the PROD system reacts differently. Would you know how I can influence the "Cond.control" fiels in customizing? I think that is the problem that the net value of the line item is not adjusted when I adjust the quantity.

Thank you and best regards,
Peter

[Lakshmipathi · Accepted solution]

The fields I referred are in Control data 1 and based on the screen shot shared, I could see both are different. Calculation rule is nothing but Calculation type and the other field is the fifth one under the same tab which is blank in your case. So need to check in Service Marketplace to find out the possible reasons that could affect KSTEU field.