S 4 HANA ABAP

 

S/4HANA ABAP represents a significant shift in the ABAP development paradigm for SAP’s latest ERP suite, S/4HANA. While the core ABAP language remains largely the same, there are several key differences, and new concepts have been introduced to leverage the capabilities of the SAP HANA in-memory database and align with S/4HANA’s simplified data model and Fiori user experience.

Critical Changes in S/4HANA ABAP:

  • Code Pushdown: S/4HANA promotes code pushdown, where complex calculations and aggregations are moved to the database layer (HANA) for optimal performance. ABAP developers must adapt their coding style by using Open SQL and Core Data Services (CDS) views to leverage this feature.
  • Core Data Services (CDS): CDS is a critical technology in S/4HANA ABAP. It allows developers to define semantically rich data models that various applications and services can consume. CDS views are often the foundation for OData services and Fiori applications.
  • ABAP RESTful Application Programming Model (RAP): RAP is a framework for quickly and efficiently building OData-based Fiori applications and web APIs. It simplifies the development process by generating much of the boilerplate code and providing a structured approach for managing business logic.
  • Fiori UI Adaptation: ABAP developers must adapt their UI development skills to create Fiori applications using SAPUI5 (JavaScript framework). Fiori elements provide pre-built UI components for everyday use cases, accelerating development.
  • Simplification: S/4HANA has simplified the data model and removed redundant tables and indexes. This means that the ABAP code that relied on old tables needs to be adapted to use the new, simplified structures.
  • Embedded Steampunk (ABAP Cloud): This is a new development environment for building cloud-ready ABAP extensions in S/4HANA Cloud. It restricts specific ABAP language features to ensure compatibility and upgrade stability.

Challenges and Opportunities:

  • Learning Curve: ABAP developers need to upskill themselves in HANA, CDS, RAP, and SAPUI5 to be effective in the S/4HANA landscape.
  • Code Adaptation: Legacy ABAP code often requires significant adaptation to be compatible with S/4HANA’s architecture and best practices.
  • Performance Optimization: ABAP code must be optimized for HANA to take full advantage of its in-memory processing capabilities.
  • Opportunities: S/4HANA ABAP opens up new possibilities for building modern, responsive applications with a better user experience.

SAP ABAP Training Demo Day 1 Video:

You can find more information about SAP ABAP in this SAP ABAP Link

Conclusion:

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