Default Value on Standard DFF

Summary:

Default Business Unit Value on Standard DFF for Purchasing Lines

Content (please ensure you mask any confidential information):

When creating a Purchase Requisition with information projects, we want the Expenditure Organization field to be populated with a default value.
The default Value expected is the Project Organization Present on the Financials Project Settings (Basic Information > Organization).

We have tried to do so by going to the following setup :
Manage Flexfields > Project Costing Details
Context Sensitive Segments > DFF Name : ORGANIZATION_ID

For our case, since Organization Name = Business unit we have tried these several available options

1
Default Type : Parameter
Default Value : business unit