SAP systems are high-powered enterprise platforms - but behind all the applications and processes are the programing languages that make it all possible, whether its development, integration or customisation.
Understanding which programing languages SAP uses helps businesses:
Build and extend their SAP systems
Develop custom functionality
Integrate with other platforms
Create modern applications that will keep them ahead of the competition
That's where understanding SAP programing languages becomes really important. If you're exploring SAP development or technology strategy, the goal is simple: learn the core SAP languages, figure out how they work together, and get the right tools for the job.
The question "SAP uses which programing language?" is actually asking about the technologies used to:
Build SAP systems
Develop applications
Extend and integrate functionality
In short, SAP uses multiple programing languages depending on the system and what it's supposed to do.
The main programing language used in SAP is ABAP (Advanced Business Application Programing).
SAP ABAP is SAP's own, event-driven programing language that first appeared back in the 1980s.
ABAP is used for:
Developing SAP applications
Customising business processes
Creating reports and workflows
Enhancing SAP functionality
ABAP is a language that supports both procedural and object-oriented programing for modern development.
ABAP programs run under the control of the SAP runtime system.
Example:
A business needs a custom report
ABAP code is written to make it happen
Data is retrieved from SAP
Output is displayed to users
ABAP is event-driven, so if a user takes an action, it can trigger the flow of an application.
This means you get:
Custom solutions within SAP
Deep integration with SAP data
SAP has moved beyond ABAP to include modern programing languages.
Used in SAP platforms like SAP BTP
Great for building enterprise-level applications
Often used for integration and backend services
Used for front-end development, including SAP Fiori as a key user-experience layer built with JavaScript-based UI technologies
Powers SAP UI technologies like SAP UI5
Allows you to create web-based applications
These languages ensure:
Modern application development
A better user experience
Integration with web technologies
SAP UI5 is built on:
JavaScript
HTML5
CSS
It's used to build:
SAP Fiori applications
Web-based user interfaces
Example:
A dashboard is created in SAP
UI5 is used to make it look and feel great
Data is fetched from backend systems
Users interact with it through a web browser
These front ends sit in the presentation layer and deliver business applications through the browser.
This means you get:
Modern design
Responsive applications
Improved usability
Modern SAP environments (especially cloud-based) use a broader range of languages. ABAP Cloud supports modern cloud-native ABAP development, and ABAP has evolved in that direction since 2020.
Some common languages include:
JavaScript (front-end and Node.js)
Java (backend services)
Python (data processing, automation, and data science and machine learning integrations with SAP)
SQL (data queries and database operations)
These languages are usually used within:
SAP Business Technology Platform (BTP)
SAP cloud solutions
ABAP Cloud is mandatory for SAP S/4HANA Cloud public edition.
This means you get:
Flexible development
Integration with non-SAP systems
Cloud development also spans the wider SAP ecosystem and can use platforms such as Cloud Foundry.
SAP systems often connect with other platforms.
This requires:
API-based integration
Modern programing languages
Developers may use:
Java
JavaScript
REST APIs
Example:
An SAP system connects to an external CRM
Data is exchanged through APIs
Integration is built using Java or JavaScript
Data transfer may also use standards such as Intermediate Document structures when connecting with external systems.
This means you get:
Seamless data flow
Connected systems
SAP systems rely on databases to store and process data.
Some key database technologies include:
SAP HANA (in-memory database)
SQL (Structured Query Language)
SQL is used for:
Querying data
Managing database structures
Supporting analytics
Modern SAP development also relies on open SQL as a database-independent access layer, and SQL and core data services are central to current SAP work. Core data services help define semantic data models, especially on an SAP HANA database. For performance-critical logic, developers may also use managed database procedures closer to the database layer.
This means you get:
Fast data processing
Real-time analytics
SAP's got a bunch of different languages at its disposal, depending on what you're trying to do.
ABAP
Core SAP development is done using this
Custom applications and processes live here too
Java
When you're building enterprise applications and integration
JavaScript
User interfaces and web applications - this is the one that makes things look nice
SQL
Managing and querying data - this is where data lives
Other languages in cloud environments
Python and Node.js come into play here
It all adds up to give you:
The full capability of the system
Flexible development options
Modern user experiences that people don't mind using
Here's how it works in real life:
A company uses ABAP to customise their SAP system and implement business logic
They build user interfaces using SAP UI5 (JavaScript)
They integrate with other systems using Java APIs
The result is:
Customised processes
Modern, easy-to-use interfaces
Connected environments that actually work
Another example:
A cloud-based app is built on SAP BTP, and SAP developers build cloud-ready extensions in the SAP BTP ABAP Environment
They use JavaScript, Node.js and all sorts
They connect to SAP S/4HANA
This gives you:
Scalability
Flexibility
Continuous innovation that never gets stale
When they're used to their full potential, SAP programing languages give you:
The ability to customise systems to suit your needs
SAP connects with other applications seamlessly
Web-based and cloud applications are supported, and modern ABAP syntax lets you write code up to 50% shorter with all the new features
Data processing is efficient and fast
SAP becomes a system that can grow with your business needs.
Organisations often face:
Limited ABAP expertise and a shortage of experienced ABAP developers
Skills shortages in legacy systems
Integration complexity
Connecting multiple technologies
Transition to modern languages
Moving from classic ABAP development to new development environment tools
To overcome these challenges you need:
Skilled developers
Strong architecture
As business requirements change and new technologies emerge, systems start to move to cloud environments. This drives a shift from ABAP-only development to multi-language environments.
And ABAP itself evolved from mainly procedural code toward ABAP Objects, with object oriented programing first showing up in ABAP 4.6C in May 2000 - a shift reflected in modern ABAP development tools.
Application Management Services (AMS) support:
Development maintenance
Code optimisation - reviewing and reducing custom code during upgrades and modernisation projects
System enhancements
Issue resolution
AMS can even help control traditional user exits as systems are modernised.
AMS ensures:
Development stays on track
Systems run smoothly and keep performing well
SAP consultancy helps organisations:
Choose the right technologies
Modernise their development approaches
Integrate systems effectively
Improve performance and scalability
This means SAP development actually delivers real value.
Modern SAP landscapes usually include:
ABAP for core ERP development - using the ABAP workbench and modern development tools
JavaScript and UI5 for front-end work
Java and APIs for integration
Cloud-based development on SAP BTP
ABAP Development Tools are Eclipse IDE plugins. The ABAP Workbench includes tools like the ABAP editor and function builder. The ABAP dictionary keeps track of metadata about data in the SAP system.
This results in:
A flexible development ecosystem
Scalable applications
Real-time capabilities
When it's all working well:
ABAP handles core SAP logic and remains the core language for sap erp and solutions, including SAP S/4HANA
JavaScript looks after the user interface
Java handles integration and backend services
SQL manages the data
Compared with other programing languages, ABAP stays central to the SAP ecosystem.
The result is a modern, flexible and powerful system environment.
ABAP
SAP's core development language for enterprise applications.
ABAP Workbench
SAP's integrated development environment for creating and maintaining ABAP programs and related objects.
ABAP Dictionary
SAP's system-wide repository for defining and managing SAP data objects.
Core Data Services
SAP's data modeling layer for defining semantic views and optimising database access, especially in HANA-based environments.
JavaScript
The language for web-based applications.
Java
The enterprise programing language.
SAP UI5
The framework for SAP user interfaces.
SQL
The language for database operations.
AMS
Ongoing support and optimisation.
What programing language does SAP use?
Primarily ABAP, with Java, JavaScript and SQL as well.
What is SAP UI5 built on?
JavaScript, HTML5 and CSS - the building blocks of modern web development.
Can SAP integrate with other systems?
Yes, it can, thanks to its use of APIs and up-to-date programing languages that can play nice with other systems.
Is SAP programing evolving?
Yes, it is - and it's moving in the right direction with a shift towards cloud-based and multi-language environments that can adapt to changing needs.
SAP isn't just built on one language - it's a mix of different technologies that work together seamlessly. It's all about getting the core logic right, building modern interfaces that people actually want to use, and connecting it all up to other systems in a way that makes sense. That way, SAP stops being this rigid thing that just runs, and becomes something the business can really extend and evolve.