AWS re:Invent 2025 - Modernize legacy ABAP code with Q Developer (MAM348)

Modernizing Legacy ABAP Code with AWS Q Developer

Overview

The presentation showcased how AWS Q Developer, an AI-powered programming assistant, can help modernize and migrate legacy ABAP code to the cloud. Key capabilities demonstrated include:

• Automating documentation generation for existing ABAP code
• Accelerating the development of Fiori applications using visual prototyping
• Streamlining the migration from SAP ECC to S/4HANA or cloud-native environments

Automating Documentation Generation

• Q Developer can analyze existing ABAP code and automatically generate detailed functional and technical specifications.
• This helps overcome challenges with legacy systems where the original developers have left the organization, and the current team struggles to understand the existing codebase.
• Q Developer can provide a comprehensive overview of the program's purpose, data dependencies, and quality recommendations to facilitate future maintenance and extensions.

Accelerating Fiori Application Development

• Q Developer can leverage visual prototyping to rapidly create Fiori application mockups based on user requirements.
• The AI assistant can scan hand-drawn wireframes or UI designs and automatically generate the corresponding Fiori application structure, including screens, fields, and data bindings.
• This allows functional consultants to collaborate closely with end-users, validate requirements, and iterate on the design before handing off to developers.

Streamlining ECC to S/4HANA Migrations

• The ABAP Accelerator extension for Q Developer helps analyze legacy ABAP code and plan the migration to S/4HANA or cloud-native architectures.
• It can identify dependent objects, generate technical documentation, and create Jira stories to track the modernization effort.
• The ABAP Accelerator also handles the code compilation, syntax checks, and activation within the target SAP environment, ensuring a smooth transition.

Technical Details

• Q Developer integrates with various IDEs, including Visual Studio Code, Eclipse, and the Business Technology Platform (BTP).
• The ABAP Accelerator leverages ADT APIs to interact with the SAP system, performing code analysis, compilation, and deployment.
• Q Developer supports multiple languages and can be configured with custom rules and templates to align with an organization's development standards.

Business Impact

• Accelerates the modernization of legacy ABAP systems, reducing the time and effort required for documentation, prototyping, and migration.
• Empowers functional consultants to be more self-sufficient in translating business requirements into working applications.
• Improves code quality and maintainability by enforcing best practices and addressing technical debt.
• Enables organizations to more efficiently migrate their SAP landscapes to the cloud, unlocking the benefits of scalability, flexibility, and reduced infrastructure costs.

Real-World Examples

• A large automotive manufacturer with 15,000+ ABAP objects used Q Developer to analyze the existing codebase, generate documentation, and plan the migration to S/4HANA.
• The AI assistant was able to create Jira stories, manage dependencies, and handle the technical deployment, allowing the development team to focus on the business logic.
• In another case, a functional consultant used Q Developer to rapidly prototype a Fiori dashboard for a production manager, iterating on the design with the end-user before handing it off to the developers.