Migrating to SAP S/4HANA via Greenfield or Selective Data Transition often leaves critical legacy data in ECC systems. This blog explores three practical strategies for archiving that data: maintaining ECC in the cloud, using SAP ILM Retention Warehouse, or adopting a third-party solution like SNP Data Fridge. Each option is assessed for cost, compliance, access, and complexity—helping you choose the right long-term data retention strategy.

As SAP customers prepare for the inevitable transition from ECC to S/4HANA, data archiving has emerged as a strategic necessity rather than an optional exercise. With in-memory computing costs significantly higher and global data volumes growing exponentially, reducing and optimising data prior to migration can streamline the brownfield conversion process, minimise downtime, and lower long-term operational costs. Beyond migration, embedding robust data lifecycle management in