1. SAP Modules (http://sap.wikia.com/wiki/SAP_modules)
SAP Modules Edit
Accounting Edit
 FI Finance
 FI-AA Asset Accounting
 FI-FM Funds Management
 IM Investment Management
 RE Standard Real Estate (obsolete)
 RE-FX Flexible Real Estate
 TR Treasury
 Banking
 expenses
Logistics Edit
 PS Project System
 MM Material Management
 LO Logistics
 WM Warehouse Management
 PM Plant Maintenance
 CS Customer Service- Service Management
 FM Fleet Management
 QM Quality Management
 SD Sales and Distribution
 PP Production Planning
 PP-PI Production Planning Process Industries
 EH&S Environment, Health & Safety
Human Resources Edit
 HR Human Resources
 HR-OM Organisation Management (Deals with the hierarchical structure of an organization. It consists of the
object types Organizational Units (O) which can be departments, divisions, wings, Positions (S) which are held by
the employees in the organization and Persons (P) who are the employees)
 HR-PM Personnel Management
 HR-PA Personnel Administration
 HR-PD Personnel Development
 HR-TM Time Management
 HR-PY Payroll (Payroll functionality is very country specific. Each country version is treated as a separate entity
by SAP for enhancement and support purpose - e.g. PY-US. Under PY IMG, you will see a node for each country
SAP supports. For the countries that are not supported by SAP, you can use the international version PY-XX)
 HR-TE Training & Event Management
 HR-LSO Learning Solutions***
 HR-CM Compensation
 HR-ECM Enterprise Compensation
 HR-BN Benefits

2.  HR-PB Recruitement
 HR-LN Loan
 HR-ABAP Advance business application programming
Till 4.7 EE (Enterprise Edition) it was called as SAP HR. From 5.0 ECC (Enterprise Central Component) it is being called as
SAP HCM. The version being used right now is 6.0 ECC.
Technical Modules Edit
 CA Cross-Application
 BC Basic Components
 ABAP programming
 Business warehousing
Additional Systems Edit
Some modules requires separate (from SAP ERP) installation. There are:
 BW - Business Warehouse
 KW - Knowledge Warehouse
 IDES - International Demonstration and Education System
 CRM - Customer Relationship Management
 MDM - Master Data Management