Assignment
There are two possibilities of assignment: You can create purchase order directly from the project. In this case, the respective items are automatically assigned.
You can also assign existing purchase order items. In purchase area, you can link each row to a project.
Note:
To link a position on order level, additionally to project you need to consider the field task in the purchase item.
Note:
The field BP Project in header has no effect on the link between project and purchase.