The Hidden Costs of Delaying Your SAP S/4HANA Migration

The Hidden Costs of Delaying Your SAP S/4HANA Migration

Standing still has a price. It shows up in maintenance premiums, in shrinking implementation windows, and in the compounding weight of a legacy landscape that keeps getting harder to leave the longer it is left alone.

When a finance leader asks what an SAP S/4HANA migration will cost, the honest answer has two halves. The first — licenses, infrastructure, implementation labor, testing, training — is the half every proposal quantifies in detail. The second half is almost never quantified at all: what does it cost to not do this yet? That question is harder to answer precisely, but it is not unanswerable, and the organizations that never ask it tend to discover the answer the expensive way, on a timeline they did not choose.

Delay is not free. It is simply a cost that arrives in a different form than an implementation invoice — as a maintenance premium, as a shrinking window for an orderly transition, and as technical debt that compounds quietly until it is suddenly the largest line item in the project.

The most literal cost of delay is the extended-maintenance premium itself. SAP’s September 2022 policy announcement set the fee for extended maintenance on certain on-premise S/4HANA releases at an additional four percent of the customer’s core maintenance base, for organizations that choose to remain off the RISE with SAP cloud subscription; the fee is waived entirely for those who move to RISE. For ECC customers specifically, industry sources such as SAP partner SEIDOR describe a historically more modest premium — commonly cited around two percent — for extended maintenance through 2030 on top of standard support fees.