How to exclude one PO item cost in work order costs

Summary

How to exclude one PO item cost in work order costs

Content

We have an OSP PO with multiple items, we need to exclude one item of the PO in the work order. The requirement is as below.

PO Number: PO123

Item1: 2$

Item2: 3$

Item3: 5$

Currently the WO is costed as 10$, but we would like to exclude the item2 i.e 3$ and make the work order cost as 7$. I have defined the costing attributes as shown in the screenshot. Can you please check and help us on this?

Version

19D