ABAP basics
ABAP (Advanced Business Application Programming) is SAP’s proprietary programming language, the language in which most of SAP’s applications are written and in which customers build custom reports, enhancements and interfaces. Learning ABAP is the gateway to the SAP technical track.
From here you learn data types and variables, control flow (loops, conditions), the workhorse internal tables, and then object-oriented ABAP (classes and methods), ALV reporting, and integration objects (BAPI, RFC, IDoc).
- ABAP is a high-level, business-oriented language that runs inside the SAP application server.
- Classic development uses the ABAP Workbench (SE80) and editor (SE38 for programs, SE24 for classes) in SAP GUI.
- Learning ABAP is the gateway to the SAP technical track.
- Watch out: Learning only procedural ABAP, modern ABAP is object-oriented and CDS-based.

What ABAP is
ABAP is a high-level, business-oriented language that runs inside the SAP application server. It has deep, built-in integration with the database (via Open SQL), the ABAP Dictionary, and SAP’s screens and business objects. It has evolved from procedural roots into a modern object-oriented language, and recent "ABAP for HANA" and CDS additions push logic down to the database.
Where you write ABAP
Classic development uses the ABAP Workbench (SE80) and editor (SE38 for programs, SE24 for classes) in SAP GUI. Modern development increasingly uses ABAP Development Tools (ADT) in Eclipse, especially for CDS, RAP and cloud ABAP.
A first program
REPORT z_hello.
DATA lv_name TYPE string VALUE 'SAP'.
WRITE: / |Hello, { lv_name }!|.The building blocks ahead
From here you learn data types and variables, control flow (loops, conditions), the workhorse internal tables, and then object-oriented ABAP (classes and methods), ALV reporting, and integration objects (BAPI, RFC, IDoc). Modern topics, CDS views and OData, connect ABAP to Fiori.
Common pitfalls
- Learning only procedural ABAP, modern ABAP is object-oriented and CDS-based.
- Ignoring Open SQL performance from the start.
- Skipping ADT/Eclipse, the modern development environment.
Authoritative sources
- - Official ABAP language reference