Cutting SAP ECC Maintenance Costs Before the 2027 Deadline

The 2027 Deadline: What It Actually Means

SAP's End of Mainstream Maintenance for ECC 6.0 on December 31, 2027 is one of the most widely cited deadlines in enterprise software. But what it actually means for your organisation depends entirely on which path you choose — and the commercial implications of each path vary enormously.

Mainstream Maintenance (the current standard) covers: legal and regulatory changes, security patches, error corrections, and access to SAP Notes and updates through the Support Portal. From January 1, 2028, organisations still on ECC under SAP maintenance will have to pay for Extended Maintenance, or transition to one of the post-mainstream alternatives.

Extended Maintenance runs until December 31, 2030 at an additional premium — SAP has indicated this costs approximately 2 to 9 percent extra over standard maintenance fees, with the exact rate varying by contract. Extended maintenance is narrower in scope, covering primarily security and legal compliance but not functional enhancements. It is the most expensive way to stay on ECC because it combines a premium fee with a deteriorating support scope.

There is also an option that SAP does not promote: the SAP ERP Private Edition with Transition Option, which allows ECC customers to run SAP ERP (essentially ECC in a hosted private cloud environment) until 2033 as a contractual bridge while planning S/4HANA migration. This path requires a contract amendment and hosting fees but avoids the extended maintenance premium.

The 2027 deadline creates commercial leverage for SAP. SAP's fiscal year ends December 31, and the Q4 pressure to close deals combines with the deadline pressure on ECC customers to create a negotiating environment that SAP exploits effectively. Organisations that approach 2027 without a documented strategy will negotiate the worst deals.

Option 1: Third-Party Support — The Maintenance Cost Killer

Third-party support (TPS) is the most immediately impactful way to cut SAP ECC maintenance costs. Providers such as Rimini Street offer full support coverage for SAP ECC — including security patches, tax and regulatory updates, and customisation support — at approximately 50% of SAP's annual maintenance fee.

For an organisation paying $4 million per year in SAP Enterprise Support at 22% of net licence value, switching to third-party support saves $2 million annually. Rimini Street's contractual support commitment extends through 2040 for SAP ECC customers, meaning an organisation switching today could run ECC for 14 more years with support at half the cost of SAP's current fee.

The commercial calculus is straightforward. But third-party support carries genuine risks that must be assessed honestly:

• No access to SAP's new functionality: TPS customers do not receive SAP innovation updates or new module releases. For organisations whose ECC usage is stable and functional requirements are fixed, this is immaterial. For organisations planning to extend SAP functionality, it is a constraint.
• Audit vulnerability concern: SAP has historically been willing to use audit leverage against TPS customers, claiming that certain patches delivered by third parties are derived from SAP's intellectual property. Rimini Street has litigated these claims, and several courts have found in Rimini Street's favour. The risk is not zero but is substantially reduced from its historical level.
• S/4HANA migration complication: Organisations on TPS who later decide to migrate to S/4HANA or RISE will need to return to SAP support, typically requiring a reinstatement process and potentially losing licence conversion credits. If migration is genuinely planned within three to five years, the TPS economics may not justify the re-entry cost.

The optimal TPS candidate is an organisation that: runs stable ECC operations with limited planned functional expansion; has no S/4HANA migration on the roadmap within three to four years; and is currently paying full SAP Enterprise Support with no meaningful maintenance discount.

Option 2: Extended SAP Maintenance — The Most Expensive Path

SAP's Extended Maintenance option, available from January 2028 to December 2030, is the path of minimum effort but maximum cost. The premium over standard maintenance fees means an organisation that was paying $4 million annually in standard Enterprise Support could face a combined fee of $4.3 to $4.7 million under Extended Maintenance — while receiving a narrower service scope and no functional updates.

Extended Maintenance does have a defined end point (2030), which creates a cleaner deadline for migration planning than TPS's open-ended support model. For organisations that are 18 to 24 months into an S/4HANA migration programme and need a contractually guaranteed bridge to completion, Extended Maintenance provides certainty — at a cost.

The negotiating reality of Extended Maintenance is that SAP does not uniformly enforce the premium. Organisations approaching the Extended Maintenance conversation with leverage — a credible TPS alternative, a co-terminus RISE discussion, or a documented phased migration commitment — consistently negotiate Extended Maintenance at the standard rate rather than the premium. SAP's commercial motivation is to retain the relationship through 2030 and position for a RISE or S/4HANA deal — and that motivation is more valuable to SAP than extracting a 2 to 9 percent maintenance premium from a customer who might otherwise leave for TPS.

Option 3: RISE with SAP — What Is Actually Included

RISE with SAP is SAP's preferred migration path for ECC customers. It bundles SAP S/4HANA Cloud Private Edition (hosted on SAP or hyperscaler infrastructure), infrastructure management, RISE-included BTP credits, Business Process Intelligence tools, and an embedded licence framework into a single subscription. SAP positions RISE as a comprehensive transformation package — and its marketing materials frequently imply capabilities that are not actually included in the base subscription.

What RISE with SAP actually includes in the standard subscription:

• SAP S/4HANA Cloud Private Edition (the ERP software layer)
• Infrastructure hosting on SAP or hyperscaler data centres (AWS, Azure, GCP — your choice from SAP's approved list)
• SAP Enterprise Support services
• Business Technology Platform (BTP) credits — limited quantity, specific to RISE use cases
• SAP Business Process Intelligence tools (process mining) — limited scope
• Embedded Analytics and SAP Datasphere entitlements — basic tier only

What RISE with SAP does not include, and what is frequently misrepresented as included:

• Digital Access for third-party integrations beyond standard scenarios — DDLC charges apply
• SuccessFactors, Ariba, Concur, or other line-of-business cloud applications — separate subscriptions required
• Full BTP credit consumption for custom development or third-party extensions
• Migration services, consulting, and system conversion costs — these are separate implementation engagements
• Network connectivity costs between RISE infrastructure and your on-premise or multi-cloud environment
• Production landscape scaling beyond contracted capacity tiers

The RISE with SAP commercial structure also changes the licence baseline in an important way. When an ECC customer migrates to RISE, SAP converts the existing perpetual licence estate into a subscription metric — typically priced on employee headcount tiers. This conversion is an opportunity for SAP to argue that the historical ECC licence base was under-sized, triggering a true-up claim at the point of RISE entry. Organisations should conduct an independent licence baseline validation before entering RISE negotiations to avoid accepting an inflated starting position.

Option 4: S/4HANA Migration — Cost Drivers and Licence Baseline Risk

A direct S/4HANA migration (on-premise or private cloud, outside RISE) gives organisations more infrastructure flexibility but requires direct licence acquisition and independent hosting. The licence conversion process — swapping ECC perpetual licences for S/4HANA equivalents with a credit for retiring old licences — is the most commercially complex element.

Licence conversion credits have declined as the 2027 deadline approaches. Early adopters (2018 to 2021) received credits of approximately 80 to 90 percent of the new S/4HANA licence value when retiring ECC licences. By 2025 to 2026, credits have dropped to approximately 70 to 80 percent, and SAP has signalled further reductions before 2027. Organisations that delay the migration licence conversation will pay more for the same conversion — every quarter of delay costs credit percentage.

The S/4HANA migration also changes the licence metric framework. ECC's licence model is based on named user types (Professional, Limited Professional, etc.) measured against headcount. S/4HANA introduces a different user classification structure and, in some implementations, changes how certain engine licences are measured. The transition can increase the effective licence count if not managed carefully — particularly for organisations with heavily customised ECC environments where the S/4HANA equivalent licence is priced differently from the legacy ECC entitlement.

Implementation costs for S/4HANA migration are substantial and frequently underestimated. SAP and implementation partners typically quote conversion programmes of 18 to 36 months at a cost of one to three times the annual SAP licence and maintenance spend. Phased implementation approaches — starting with a core financial and procurement migration and staging the broader transformation — can spread costs and reduce risk, but the overall investment is significant regardless of approach.

What Your Organisation Should Do in the Next 90 Days

The 2027 deadline is 20 months away. That is enough time to make a deliberate strategic choice — but not enough time to delay that choice without foreclosing options. Here is what the next 90 days should accomplish:

• Commission an independent licence baseline assessment: Before engaging SAP on any migration or maintenance discussion, establish your own view of the current ECC licence position. This requires reviewing the current contract entitlements, running SAP's system measurement tool, and identifying any over-deployment that SAP might claim at the transition point. Independent validation gives you a position to defend.
• Evaluate third-party support as a genuine alternative: Request a formal commercial proposal from at least one TPS provider. This serves two purposes: it gives you a real cost comparison, and it creates a credible alternative that strengthens your SAP negotiating position whether or not you ultimately use it.
• Model the total cost of ownership for each path: Build a five-year cost model for each option: (a) TPS with delayed migration; (b) SAP extended maintenance with S/4HANA by 2030; (c) RISE with SAP migration; (d) direct S/4HANA on-premise migration. Include maintenance, migration services, licence conversion credits, and infrastructure costs. This model will reveal which path is genuinely cheapest on a total-cost basis, not just on headline annual maintenance.
• Open a conversation with SAP before Q4 2026: SAP's fiscal year ends December 31. Account teams are under maximum pressure to close deals in Q4 2026 — which means Q2 and Q3 of 2026 are the optimal window to have preliminary commercial conversations. Organisations that approach SAP in Q4 with a deadline-driven urgency negotiate worse deals than those that have been building the relationship through the year.

The Cost of Doing Nothing

The worst outcome is not choosing the wrong path — it is choosing no path until January 2028 when the options narrow dramatically. An organisation that arrives at January 2028 still on standard SAP ECC maintenance, with no migration in progress and no TPS agreement in place, faces a set of unattractive choices: Extended Maintenance at a premium, a rushed RISE negotiation in which SAP holds all the timing leverage, or an emergency TPS switch that sacrifices migration optionality.

The organisations that navigate the 2027 deadline most successfully are those that made a documented strategic decision by mid-2026, built the commercial position to support that decision, and negotiated with SAP from a position of preparation rather than urgency. The deadline is real. The urgency to plan for it — calmly, deliberately, and with independent advice — is equally real.