SAP extended maintenance keeps your ECC system on SAP's own patches and statutory updates for an additional fee through the end of 2030; independent third-party support typically costs less per year but replaces SAP's patches with the provider's own engineering and ends your access to new SAP releases. Both are legitimate ways to keep ECC running safely past the end of mainstream maintenance in 2027 - the right one depends on how soon you will migrate, how much you value SAP's specific patches, and how stable your estate is. This guide is the direct comparison, and it sits beneath our pillar on SAP third-party support and the ECC exit.
What each option actually provides
SAP extended maintenance is a continuation of SAP's own support. You keep receiving SAP security notes, legal and regulatory updates, and access to SAP's support channels and knowledge base, in exchange for an uplift on your maintenance base for the extended-maintenance window. It is, in effect, SAP support with a surcharge and an expiry date.
Independent third-party support is a different arrangement. A provider such as Rimini Street or Spinnaker Support takes over maintenance of your ECC system. They deliver security protection and statutory updates through their own engineering rather than redistributing SAP's binary patches, and they support your custom code directly. You generally pay less than SAP's standard maintenance rate, but you stop receiving new SAP releases and enhancement packages.
Side-by-side
| Dimension | SAP extended maintenance | Independent third-party support |
|---|---|---|
| Provider | SAP | Rimini Street, Spinnaker Support, others |
| Annual cost | Standard maintenance plus uplift | Typically below SAP standard rate |
| Duration | Through end of 2030 (then customer-specific) | For as long as you run ECC |
| Patches | SAP binary patches and notes | Provider-engineered fixes |
| Custom code | Standard code focus | Customisations supported directly |
| New SAP releases | Available | Not available while on third-party support |
Cost behaviour, not just cost level
The price comparison is not only about the headline rate; it is about how the cost behaves over the deferral period. SAP extended maintenance applies an uplift on top of a maintenance base that has typically been growing. Third-party support usually starts lower and is held flat or capped. Over a three- to five-year window before an S/4HANA migration, that difference compounds, and the cumulative saving is frequently what makes the migration affordable. Model the full period, not a single year, and net out any one-time transition costs of moving to a third-party provider.
The decision is really about timing. If you will be on S/4HANA before 2028, SAP extended maintenance may simply be a short bridge and the disruption of switching providers may not be worth it. If your realistic migration is years out - or undecided - third-party support's lower, flatter cost over a long deferral is where the value sits. Fix your honest migration date first; the maintenance choice often follows from it.
Statutory and legal updates: verify by jurisdiction
The most important diligence item when considering third-party support is statutory coverage. ECC systems carry payroll, tax, and increasingly e-invoicing logic that must track legal change in every country you operate in. SAP extended maintenance delivers these as part of SAP's updates. Independent providers also deliver legal and regulatory updates, but you should confirm coverage for your specific jurisdictions and modules before committing, rather than assuming parity. For multinational payroll estates in particular, this verification is the deciding factor as often as price is.
Customisation depth
Heavily customised ECC systems can actually favour third-party support, because independent providers support your custom ABAP and configuration as a first-class part of the contract, where SAP's standard support is oriented to standard code. If years of bespoke development sit at the heart of your ECC system and changes are rare, a provider that maintains that custom code directly may deliver a better day-to-day support experience than SAP's standard model.
Making the call
Work through four questions. When, realistically, will you be live on S/4HANA? What is the multi-year cost of SAP extended maintenance versus third-party support across that window, net of transition costs? Does your chosen third-party provider cover the statutory updates for every country and module you depend on? And how customised is your estate? The answers usually point clearly to one path. Whichever you choose, plan it alongside the migration rather than in isolation - the two decisions share a budget and a timeline.
What a transition actually involves
Buyers worried about the disruption of leaving SAP support often overestimate the transition and underestimate the diligence. Moving from SAP maintenance to a third-party provider is principally a contractual and knowledge-transfer exercise: serving the required notice on SAP, archiving the SAP software and documentation you are entitled to retain, and onboarding the provider's engineers onto your system and its customisations. It does not require a technical migration of the ECC system itself - the software keeps running as it is. The real work is front-loaded into diligence: confirming statutory-update coverage for your jurisdictions, validating the security approach with your information-security team, and pinning down the contract terms for support levels and any future return to SAP. Treat the transition as a procurement and risk exercise, scoped over a defined window with SAP support overlapping the cutover, rather than as an IT project.
For the wider framing, return to the SAP third-party support and ECC exit pillar. For the migration itself and its re-licensing consequences, see the ECC-to-S/4HANA migration playbook and mapping legacy licences to S/4HANA roles. For an engagement on your specific estate, see our SAP licensing experts service and the SAP vendor hub.