You can depict a parallel valuation method in your SAP system by storing posting datafor the various accounting principles in separate ledgers.

• The data for one accounting principle is stored in the general ledger. This is known as the "leading" valuation view.
• For each additional (parallel) accounting principle, you create an additional ledger in the Special Ledger component.

You can make postings to the additional ledger from various SAP application components.

• Financial Accounting (FI)
• Asset Accounting (FI-AA)
• Corporate Finance Management (CFM)
• Controlling (CO)

If you depict a parallel valuation method using an additional ledger, you must be aware of the following points:

• Only the valuation (accounting principle) stored in the general ledger is integrated with Controlling. The additional ledger is not integrated with Controlling. This means that no Controlling is possible for the valuation approach that is stored in the additional ledger.

• Postings made to the general ledger are updated automatically to the additional ledger. To ensure that the additional ledger only contains data that is relevant for the parallel accounting principle, you have to use a ledger selection to filter out data that you only want to post to the general ledger.
• Documents that automatically create valuation reports contain the account assignment accounting principle. You can use this account assignment in your ledger selection to define what is posted to the general ledger and what is posted to the additional ledger. Manually posted documents do not contain this account assignment.