Technical Strategies For Large-Scale SAP Upgrades: Lessons From Tier-1 Retail And Enterprise Programs

Abstract

Large-scale SAP upgrades represent critical transformation initiatives that demand sophisticated technical strategies balancing business continuity requirements with modernization objectives. This article examines proven implementation frameworks derived from enterprise-scale deployments, including retail organization conversions to modern SAP platforms and comprehensive data archiving programs addressing substantial database environments. Strategic success depends on systematic pre-upgrade preparation encompassing data footprint reduction through ArchiveLink architecture implementation, policy-driven retention frameworks, and custom code inventory optimization. Implementation engineering requires industrialized approaches to code remediation utilizing HANA-aware optimization techniques, columnar storage exploitation, and near-zero downtime orchestration through parallel landscape synchronization. Performance optimization addresses peak operational scenarios through comprehensive workload modeling, queue discipline management, and job orchestration strategies. Data migration governance encompasses selective transfer strategies aligned with compliance requirements, multi-layered quality controls, and comprehensive testing frameworks progressing from unit validation through end-to-end performance verification. The article contributes actionable guidance for organizations undertaking complex SAP modernization initiatives while maintaining operational excellence standards throughout transformation processes.