How to update costs on Intercompany Sales Orders

Hi All,

This is the scenario:

Enter an Intercompany Order

Order Date 06/27/18

34000 Branch Plant (GUDS) is in the F4201 MCU (34000)

3000 Branch Plant (MA) is the F4211 MCU (3000)

Correct cost populates from the F4106

Order has not been ship confirmed nor invoiced.

August 31 the detail company updates the F4106 with a new cost.

Now my open intercompany sales order has the incorrect cost.

Ran the R42950 with a 1 in the cost update and the version of intercompany sales order.

Cost did not update.

Does anyone know the correct way to update a cost of an intercompany order?

Thank you,

Sherry