SAP ABAP (full form – SAP Advanced Business Application) is a high-level programming language typical for SAP on-demand and on-premise business applications. Developed by SAP, it allows the mass-processing of data in SAP business applications. It helps to customize the SAP systems and improve SAP-based applications by building add-ons and extensions in all solution modules, areas and business processes.
ABAP is a multi-paradigm programming language, meaning programmers can utilize object-oriented, procedural, and also other programming principles. While ABAP is the primary programming language of SAP, solutions designed with ABAP can run alongside those based on other programming languages such as SAPUI5, JavaScript, and Java.