If you still run SAP Process Integration or Process Orchestration, the clock is the story. SAP PI/PO is reaching end of mainstream maintenance, and the integration backbone that quietly moves data between your SAP and non-SAP systems needs a plan. The teams that treat this as a 2027 problem are the ones who will be doing a rushed, expensive migration in 2027. This guide lays out the real timeline, what "end of life" actually means for your interfaces, the risk of waiting, and the options for getting to SAP Integration Suite in good order.
What "End of Life" Actually Means Here
End of life for PI/PO does not mean the system stops working on a particular date. It means SAP's mainstream maintenance winds down, after which you face a combination of: no new features, reduced or extended-fee support, and a growing gap between your integration platform and the cloud-first systems it has to talk to.
The practical pressure points arrive before the formal date:
- Your endpoints move first. As you migrate to S/4HANA and adopt cloud applications, those systems increasingly expect modern, cloud-native integration. PI/PO can be made to work, but you are bridging an aging middle layer to a modern landscape.
- Talent gets scarce. PI/PO expertise is not what new integration consultants are learning. The pool of people who can maintain complex PI/PO interfaces shrinks every year.
- Risk compounds. An unsupported integration layer carrying business-critical data is a risk that grows quietly until something breaks at the worst possible time.
So the honest framing is not "PI/PO stops in 2027." It is "the cost and risk of staying on PI/PO rise every quarter, and the runway to migrate well is shorter than the headline date suggests." We track the precise dates and support tiers as part of our PI/PO migration service, because they shift and the extended-maintenance options have their own deadlines.
Why Waiting Is the Expensive Choice
Integration migrations are not like upgrading a single application. The effort scales with the number and complexity of your interfaces, and those interfaces touch every connected system. That is exactly why a rushed migration is so costly.
What goes wrong when teams wait:
- The interface count is always higher than expected. Organizations routinely discover they have hundreds more active interfaces than their inventory showed. Every undiscovered interface is a late surprise.
- Parallel deadlines collide. PI/PO migration competing for the same team and the same change windows as an S/4HANA program is a recipe for both slipping.
- Fixed-price bids balloon. Going to market late, with an incomplete interface inventory, forces integrators to price in heavy risk, the same dynamic that drives migration projects over budget.
- No room for iteration. A healthy migration migrates interfaces in waves, learns, and adjusts. A late migration has no slack to do that, so it becomes a high-risk big-bang.
The single most valuable thing you can do this year is build a complete, accurate inventory of your interfaces and their complexity. That inventory is the foundation of every realistic estimate and plan.
Your Migration Options
The destination for most organizations is SAP Integration Suite (part of SAP Business Technology Platform), the cloud-native successor that handles the integration patterns PI/PO did, plus the API-first, event-driven patterns modern landscapes need. But "migrate to Integration Suite" is a direction, not a single approach. The realistic options:
| Option | What it means | When it fits |
|---|---|---|
| Re-platform to Integration Suite | Migrate interfaces to the cloud integration service, modernizing as you go | The default path for most organizations |
| Rehost on PI/PO temporarily | Move PI/PO to a supported infrastructure to buy time | Only as a bridge with a committed migration date |
| Re-architect selectively | Replace some interfaces with API-led or event-driven patterns | High-value interfaces where the old pattern was a poor fit |
| Retire | Decommission interfaces that are no longer needed | Always, after the inventory reveals dead interfaces |
Most real programs combine these: retire the dead weight, re-platform the bulk, and re-architect the handful of interfaces where a modern pattern (for example, event-driven processing for IDocs) genuinely pays off. We covered the technical detail of that move in our PI/PO to Cloud Integration migration guide.
A Sane Migration Sequence
The difference between a controlled migration and a fire drill is sequencing. A sequence that works:
- Inventory and classify. Catalog every active interface, its volume, its complexity, and whether it is still needed. Use SAP's assessment tooling, but verify against actual runtime data, not just the design-time catalog.
- Retire the dead. Decommission unused interfaces before you spend a cent migrating them. This routinely shrinks the project meaningfully.
- Group into waves. Batch interfaces by system, complexity, and business criticality so you can migrate, test, and learn in manageable increments.
- Migrate and run in parallel. Stand up the new integration alongside the old, cut over interface groups with the ability to fall back, and decommission PI/PO only when each wave is proven.
- Modernize where it counts. For the interfaces that justify it, adopt API-led or event-driven patterns rather than a like-for-like rebuild.
This wave-based approach is what makes a zero-downtime cutover possible. It also turns a frightening monolith into a series of bounded, low-drama releases.
Coordinating With Your S/4HANA Move
PI/PO migration rarely happens in isolation. If you are also moving to S/4HANA, the two programs have to be sequenced deliberately, because they share teams, systems, and change windows, and because your integration targets are themselves moving. Sometimes integration leads, sometimes it follows, but it can never be an afterthought. The interface layer is what keeps the business running during an S/4HANA migration, so its modernization belongs in the same overall plan, and the platform skills overlap with broader SAP BTP consulting work.
Start the Inventory Now
The PI/PO end-of-life deadline rewards early, methodical work and punishes waiting. You do not need to migrate everything tomorrow, but you do need a complete interface inventory, a retirement list, and a wave-based plan this year, so that the migration itself is a series of controlled releases rather than a 2027 emergency.
If you want help scoping it, our SAP PI/PO migration services start exactly there: a verified interface inventory and a migration plan sequenced against your S/4HANA roadmap, with the dead interfaces retired before they cost you anything. The deadline is fixed; the only variable is whether you meet it on your terms or SAP's.