15 April 2026 | 7 min read
Reasons why decommissioning is necessary for S/4HANA: A comprehensive guide
Author: Priyasha Purkayastha, Global Content Manager, TJC Group As SAP ECC approaches its end-of-maintenance deadline, organisations worldwide are accelerating their S/4HANA migration plans. Yet one critical step is frequently underestimated: decommissioning legacy systems. Far from being an afterthought, legacy system decommissioning is a strategic imperative that directly determines the cost, speed,…