Purpose
The actual costs on investment measures (WBS elements or internal orders) consist of
Process Flow
When you post acquisitions, the account assignment object is the order or WBS element belonging to the investment measure. You cannot post directly to the asset under construction that belongs to the investment measure.

Posting during the Under-Construction Phase
From the point of view of management accounting, an acquisition that is posted to an investment measure goes through the following phases:
When an acquisition to an investment measure is not a cost element, but instead is a posting to assets (such as an asset acquisition), you have to post it with a cost element nonetheless. You post it with a cost element to the order or WBS element (to the expense account for costs that have to be capitalized). This account is credited during the periodic settlement, so that it afterwards has a balance of zero. You might need to create the expense account for costs requiring capitalization.