In-depth SAP S/4HANA, RISE, PI/PO, and BW/4HANA migration guides — brownfield vs greenfield, cost and timelines, and the mistakes that derail projects.
Most SAP migrations fail on planning, not technology. The articles in this category cover the decisions that actually determine outcome: choosing between a brownfield conversion, a greenfield reimplementation, or a selective data transition; sizing HANA and the target landscape; sequencing PI/PO and BW/4HANA workstreams alongside the core ERP move; and building a realistic cost and timeline estimate before committing to a date.
They are written from a Basis and infrastructure perspective — the technical layer where migrations succeed or stall. Expect concrete guidance on system conversion, cutover and hypercare planning, downtime minimization, and the risk factors (custom-code volume, integration debt, data quality) that most often blow up a program schedule.
What an S/4HANA migration really costs in 2026: the cost drivers, realistic ranges by approach, the hidden line items, and why projects go over budget.
SAP ECC vs S/4HANA: the real differences in data model, database, UX, and AI readiness — plus the 2027 deadline and how to decide when to move.
SAP PI/PO is reaching end of life. The real timeline, the risk of waiting, and your migration options to Integration Suite before the 2027 deadline.
Migrating SAP BW to BW/4HANA: the three migration paths, object conversion strategies, the role of SAP Datasphere, and the pitfalls to avoid.
The ten most common S/4HANA migration mistakes, from custom-code underestimation to testing shortcuts, and the practices that prevent each one.
Step-by-step PI/PO to Cloud Integration migration: SAP assessment tooling, technical challenges, the EDA pattern for IDocs, and post-migration steps.
Brownfield vs greenfield vs selective data transition for S/4HANA — real cost ranges, timelines, and a decision framework from senior architects.
Most SAP migrations blow their budget, predictably and preventably. Where budgets fail, and the planning disciplines that keep them on track.
Extended maintenance through 2030/2033 looks cheaper than migration, until you run the numbers. A side-by-side TCO analysis of ECC vs S/4HANA.
Every quarter you delay S/4HANA migration costs more. ECC inaction's compounding costs: maintenance premiums, talent scarcity, technical debt.