3. Integration and Technical Details
SAP FICO’s power lies in its deep integration with other modules and its structured use of transaction codes and database tables.
3.1. Module Integration
- FI-CO Integration: Cost-relevant postings made in FI (e.g., an expense posting to a G/L account) are automatically passed to CO. The G/L account must be created as a “cost element” in CO to facilitate this flow.
- FI-SD Integration: When a billing document (invoice) is created in SD, the system automatically generates a corresponding accounting document in FI, debiting the customer account and crediting the revenue account.
- FI-MM Integration: Material movements in MM, such as goods receipt (101) or goods issue (601), trigger automatic postings in FI. The system uses a configuration (OBYC) to determine the correct G/L accounts for these inventory-related transactions based on the material, valuation class, and movement type.
3.2. Key Tables in SAP FI and CO
The following tables represent a small sample of the critical database tables where master data and transactional data are stored.
SAP FI Tables
| Table | Description |
| BKPF | Accounting Document Header |
| BSEG | Accounting Document Segment (Line Items) |
| KNA1 | Customer Master (General Data) |
| KNB1 | Customer Master (Company Code Data) |
| LFA1 | Vendor Master (General Section) |
| LFB1 | Vendor Master (Company Code Section) |
| SKA1 | G/L Account Master (Chart of Accounts) |
| SKB1 | G/L Account Master (Company Code) |
| ANLA | Asset Master Record Segment |
SAP CO Tables
| Table | Description |
| CSKS | Cost Center Master Data |
| CSKA | Cost Elements (Chart of Accounts Data) |
| CSKB | Cost Elements (Controlling Area Data) |
| AUFK | Order Master Data (for Internal Orders) |
| COBK | CO Object: Document Header |
| COEP | CO Object: Line Items (by Period) |
| CEPC | Profit Center Master Data Table |
| GLPCA | EC-PCA: Actual Line Items for Profit Center Accounting |