SAP is an enterpeise resource planning (ERP) software or solution and using its application programming one can effectively manage an enterprise's resources, people, money, machines,etc.
SAP stands for Systems, Applications and Products in Data Processing.
The original abbrevation of SAP was in German: Systeme, Anwendungen, Produkte, and in English "Systems Applications and Products."
As SAP is ERP solution and one can work as a consultant implementing SAP. If you have a programming bbackground, you can go for technical module and work as technical consultant. If you do not have programming background, but have domain experiance in any of the modules of SAP, then you can go for functional modules. Functional consultants are paid more than technical consultants.
SAP ERP is the one of five major enterprise applications that makes up SAP's Business Suite. The four other applications are:
Customer relationship management (CRM).
product lifecycle management (PLM).
Supply chain management (SCM).
Supplier relationship management (SRM).