Cogent | Case Study | Streamlined SAP HANA to S/4HANA Migration on AWS

Cogent Infotech

Case Study

Dallas, Texas

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The Business Problem
An enterprise is using SAP broadly as the ERP system across a large number of business processes and daily operations, and plans to migrate the current ECC version of SAP to S/4HANA hosted by SAP RISE on Amazon AWS.‍

Solution‍

We start by assessing HANA calculation views and categorizing them for migration to S/4HANA CDS views. For direct replacements, we ensure seamless integration with data pipelines and Snowflake updates. Complex views are re-architected with new CDS views and pipelines to meet the enterprise’s specific RFP requirements.

About Cogent Infotech
Founded in 2003, Cogent Infotech is a trusted, award-winning firm with 22+ years of experience, 150+ government contracts, 10,000+ projects, and a 96% employee retention rate. Recognized as an SBA Small Business and MBE-certified, we deliver excellence through diverse talent, AI-driven recruitment, and cooperative contracts like NASPO Value Point and TIPS-USA.

Requirements Alignment:
Our team coordinated with the system integrator to ensure alignment between our migration plan for HANA calculation views and the overall migration strategy for S/4HANA RISE.

Before The Cutover

Initial Planning: Worked closely with the enterprise and the system integrator to understand project timelines, milestones, and dependencies.
Communication Channels: We established clear communication channels and escalation procedures to facilitate ongoing collaboration and ensure that any issues or concerns are addressed promptly.

During The Cutover

Real-Time Coordination: Our team maintained open lines of communication with both the enterprise and the system integrator throughout the cutover process.
Issue Resolution: We worked collaboratively with the system integrator to troubleshoot and resolve issues in a timely manner, minimizing disruption to the migration process.

After The Cutover

Post-Implementation Support: Our team continued to provide support to the enterprise and the system integrator post-implementation to ensure a smooth transition and address any lingering issues or concerns.
Knowledge Transfer: We facilitated knowledge transfer sessions with the enterprise’s personnel to ensure they are equipped to effectively manage and maintain the migrated HANA calculation views within the S/4HANA RISE environment.

Best Practices

Identify and Analyze Existing Calculation Views: Review existing HANA calculation views to determine complexity, performance, and dependencies.
Leverage CDS View Features: Use CDS annotations and data modeling capabilities to optimize views.
Simplify Data Models: Reduce complexity by consolidating logic in fewer CDS views.
Reuse Standard S/4HANA CDS Views: Leverage standard CDS views provided by SAP in S/4HANA.
Optimize Performance: Use buffering, filtering, and aggregations directly in CDS views.
Ensure Compatibility: Check that custom CDS views align with S/4HANA business logic.
Security and Authorization: Implement S/4HANA authorization checks via CDS annotations to maintain data security.
Test and Validate Thoroughly: Conduct performance tests and functional validation after migration to ensure accurate results and improved performance.