Cost type when using SD/OD drop ship sales and purchase orders.

When posting a credit entry to the Inventory account in the G/L, the sales orders post an RI entry and cost should be based on 01 last in cost per the branch plant settings, but they are using cost types 21,45 etc.

The OD purchase order is correct, it is posting to the G/L using an OV receiving entry and debiting Inventory with 07 std cost per the branch plant settings.

I read in doc 625588.1 that "The following fields will update from the OD to the SD:

     1) Unit cost and extended cost (except when Standard (07) Cost is used for either the Inventory /Sales  or Purchasing costing methods."