Financial Accounting (FI) is central module in any business
system. Finance Module gets postings from other modules like Materials
Management (MM), Human Resource (HR), Sales and Distribution (SD) etc through
integration. FI module supplies data to Costing Module (CO). All external
reporting is from FI.
Most important Organizational Structure in FI is Company Code. Balance sheet is drawn on
a company code. Company code is the legal entity to the external world.
Organizational structures in other modules like Purchasing Organization in MM, Plant in Logistics, and Sales Organization in SD are all assigned to Company Code.
Further Company code is assigned to Controlling area.
Company code is represented in character length and usually in numerics like -1100.
Other Organiztional structures are attached to Company Code.
Basically the first peice of configuration done in an SAP implementation is Company Code!