Integration of the Special Purpose Ledger with
Other SAP Applications 
Use
All SAP applications are based on the concept that you only enter a business transaction once. The information that you enter is, however, then immediately available to all other SAP applications.
In the special purpose ledgers, the data is transferred from the other application components when it is entered. The data transferred is validated during entry. With this maximum integration, you do not need batch interfaces; the data can be transferred to the special purpose ledgers directly.
Features
Interfaces with Other SAP Application Components
The data that is saved in the special purpose ledger can enter the FI-SL system in various ways: Business transactions can be copied from other SAP applications or external systems, or they can be entered in the FI-SL system directly.
The Integration Manager processes all data that enters the FI-SL system. Through user-defined selection conditions and validation and substitution rules, the Integration Manager determines whether and how data should be posted to the FI-SL tables.
· In Logistics, the Materials Management System (MM) supplies information on inventory movements and invoice verification. Data can also be transmitted from Sales and Distribution (SD).
· Data can also be transferred from Financial Systems (FI). The Cost Accounting modules (CO) provide information about costs for cost centers (CO-CCA) or orders/projects (CO-OPA).
The data is transferred to the FI-SL system using a new structure. This new structure is an accounting document that gives you more flexibility when posting data from other applications. For example, you can post data for several different dimensions. In addition, the document number of the original document is always copied into the FI-SL system.
If you defined user exits for copying data to FI-SL before Release 3.0, you have to change the user exits and adapt them to the new accounting document structure. For more information, see the “Data Transfer to FI-SL for FI, MM, AM, SD, and CO Documents” Release Note.
For more information about transferring data to the FI-SL system, see:
Data Transfer from SAP Components.
Data Input from External Systems