Bottom line up front: Third-party support and SAP Extended Maintenance are not two flavors of the same thing. One buys you the lowest possible maintenance cost. The other buys you the easiest way back to SAP if your plans change. Choosing between them on price alone is how CFOs end up locked into the wrong door for the next five years.
If your organization is still running SAP ECC, you already know the date: mainstream maintenance ends December 31, 2027. What you may not have modeled yet is what happens after - because "after" isn't one path, it's a choice between two very different risk profiles.
This piece is not another explainer of what third-party support (3PS) is. It's a working comparison for the executive who has to defend a maintenance-spend recommendation to a board that will ask hard questions about cost, compliance exposure, and reversibility.
What Each Option Actually Buys You
Both options keep your existing ECC environment running past 2027. That's where the similarity ends.
3PS means terminating your SAP maintenance agreement and contracting an independent provider - Rimini Street and Spinnaker Support are the two names that come up most often - to handle patches, functional support, and issue resolution going forward. SAP Extended Maintenance means staying inside SAP's own support structure at a premium price, through a defined window that currently runs to December 31, 2030.
The distinction that matters isn't cost. It's what each path does to your relationship with SAP going forward.
What 3PS Covers (and Doesn't)
Under 3PS, an independent provider takes over patching, functional support, and break-fix work for your ECC environment as it exists on the day you leave SAP maintenance. You keep running the system you already know, without an active migration project competing for the same budget and staff.
What you give up: access to the SAP Support Portal, new SAP Notes, and SAP's own development pipeline. You also stop receiving new regulatory and legal updates directly from SAP - a point that matters more in some functional areas than others, covered below.
What Extended Maintenance Covers (and Doesn't)
Extended Maintenance keeps you inside SAP's support structure. You continue receiving security patches and legal or regulatory updates. What you don't get is new functionality or product innovation - Extended Maintenance restores continuity, not progress.
It's also not permanent. It's a defined window, not a destination, and it typically pushes the same decision back in front of you again once it ends.
The Real Cost Picture - Not Just the Headline Discount
The number that shows up in most 3PS pitches is a maintenance-fee reduction of roughly half of standard SAP fees. That figure is directionally consistent across independent industry commentary on this topic. It is also not the full cost picture, and treating it as such is the most common mistake CFOs make in this decision.
Extended Maintenance isn't free continuity either. Industry analyses describe a premium layered on top of existing SAP maintenance fees, with reported increases in the high-single-digit to low-double-digit range once index-linked adjustments are factored in.
Neither number tells you what you actually need to know: what does the savings fund? A full S/4HANA migration can cost as little as $2 million for a contained environment or run past $1 billion for a large, heavily customized enterprise, according to independent analysis from Panorama Consulting. If the money saved by choosing 3PS or Extended Maintenance isn't earmarked against that eventual number, it's not savings. It's deferred spend with no plan attached.
Gartner data reported by CIO.com found that only about 39% of the roughly 35,000 organizations running SAP ECC had licensed S/4HANA by the end of 2024 - meaning roughly six in ten ECC customers were still facing this exact decision heading into the 2027 deadline. That is not a market that has quietly solved this problem. It's a market still deciding, at scale, which of these two paths to take.
The Exit-Terms Difference Nobody's Pitch Deck Mentions
This is the section most vendor content skips, on both sides.
If you leave SAP maintenance for 3PS and later decide to return, SAP does not simply reinstate you at your prior terms. Industry sources describe reinstatement fees and back-maintenance charges applied retroactively for the period you were outside SAP support - charges that can offset a meaningful share of what you saved by leaving in the first place. One documented exception: customers who return as a greenfield RISE with SAP customer, with no migration of prior configuration or historical data, may avoid that penalty structure. That path means starting over, not resuming where you left off.
Extended Maintenance doesn't carry that same exit risk. It keeps you inside SAP's structure the entire time, which preserves your ability to return to standard terms without the reinstatement exposure that comes with 3PS.
The practical read for a CFO: 3PS is easy to enter and expensive to exit. Extended Maintenance costs more up front but keeps the door open. Price the exit, not just the entry, before either number goes into a board deck.
Compliance and Regulatory Exposure
This section matters most if your ECC environment touches finance, payroll, or statutory reporting.
Under 3PS, you stop receiving SAP's own regulatory and legal updates - the tax, payroll, and statutory reporting changes that shift on a jurisdiction-by-jurisdiction basis. A stable, non-evolving ECC environment with low regulatory complexity can absorb that gap without much operational risk. A multi-country payroll or tax environment cannot absorb it as easily, and that gap is where 3PS decisions go wrong.
Extended Maintenance keeps SAP's regulatory update stream intact for the length of the window, which is the main reason compliance-heavy organizations lean toward it even at a higher price.
Neither path is automatically the safer one. The right answer depends on how exposed your compliance-critical modules actually are - which is a question specific to your environment, not a general rule either vendor's pitch will give you.
A Scoring Framework: Which Fits Your Environment
Before either number goes into a board conversation, score your environment against these five questions:
If your organization scores toward the left column on every row, 3PS is a legitimate, deliberate bridge strategy - not a shortcut. If you land in the right column on compliance exposure or re-entry likelihood, Extended Maintenance's higher price is buying you something real: optionality.
The trap, on either side, is treating the decision as a cost comparison alone. The organizations that get burned by this choice are rarely the ones who scored it carefully against their own environment. They're the ones who took a vendor's savings percentage as the whole analysis.
Where This Decision Meets Your Migration Plan
Neither 3PS nor Extended Maintenance is a strategy on its own. Both are bridges. The question that actually matters is what they're bridges to.
If the savings from either path aren't tied to a dated, funded migration plan, the "delay strategy" isn't buying time - it's spending down a runway that ends the same day it started, just later. A SAP Migration Readiness Assessment gives you the scoping needed to turn either path's savings into an actual funded timeline instead of an open-ended holding pattern. For organizations running compliance-sensitive modules on either path, a parallel look at SAP AMS support keeps day-to-day operations stable while the migration decision gets made on its own timeline, not under deadline pressure.
The CFOs who come out of this decision well are the ones who treated the maintenance choice and the migration plan as one conversation, not two separate budget lines.
FAQ
Can I return to SAP support after leaving for third-party support?
Yes, but industry sources describe this as typically involving reinstatement fees and back-maintenance charges for the period you were outside SAP support. One documented exception applies to organizations returning as a greenfield RISE with SAP customer, with no migration of prior configuration or data.
Is SAP Extended Maintenance a better option than third-party support?
It depends on your environment. Extended Maintenance keeps you inside SAP's support structure and preserves an easier path back to standard terms, at a premium cost and for a defined window. Third-party support generally costs less but carries the exit risk and regulatory-update gap described above. There is no universal answer - it depends on your system's stability, your compliance exposure, and your migration timeline.
Does either option cover a future move to S/4HANA?
No. Both third-party support and Extended Maintenance keep your existing ECC environment running as it stands. Neither replaces the work of planning and executing a migration to S/4HANA - that requires a separate, dedicated plan.
How does leaving SAP maintenance affect my SAP licensing?
Your underlying SAP license terms and any related compliance obligations don't disappear when you move to third-party support. Licensing implications should be reviewed with your SAP licensing or legal advisor before making the switch, since terms vary by contract and region.
What happens if we do nothing before the 2027 deadline?
Running ECC past December 2027 without a maintenance plan in place - SAP's or a third party's - leaves your environment unpatched against newly discovered issues and cut off from new regulatory updates. That exposure grows the longer it goes unaddressed, regardless of which delay strategy you eventually choose.
