(BAPI) /bap'ee/ A set of methods provided by an sap business object.

Release 4.0 of sap ag's r/3 system supports object-oriented programming via an interface defined in terms of objects and methods called BAPIs. For example if a material object provides a function to check availability, the corresponding SAP business object type "Material" might provide a BAPI called "Material.CheckAvailability".

The definitions of SAP business objects and their BAPIs are kept in an SAP business object repository. SAP provide classes and libraries to enable a programming team to build SAP applications that use business objects and BAPIs. Supported environments include com and java.

The open bapi network gives background information and lists objects and BAPIs.