Need Costing Accounting to be Derived from Sales order header field

Summary

Need Costing Accounting to be Derived from Sales order header field

Content

We are on 19D.

We have a segment in our chart of accounts for location.  We want to define this to be our operating districts and use them for revenue and COGS.

We want to use a field on the sales order header, Warehouse, to house a field for the district responsible for the revenue and COGS.

So we want to populate our GL segment based on a sales order header field (order warehouse).

Unfortunately we cannot find a way to link GL accounting to a sales order header field.  As you know the standard approach is to link COGS to line items on the same order.