For more than a decade, legacy source-to-pay suites have run enterprise procurement.
SAP bought Ariba for $4.3 billion in 2012. Coupa started taking on the market leaders around 2011 and went public in 2016.
Ask a Fortune 500 procurement executive which tool they use, and you’ll usually hear one of those two names.
S2P (source-to-pay) suites sold one promise: a single platform covering sourcing, contracts, purchasing and invoices. And large enterprises lapped it up throughout the 2010s.
That reign now looks shaky.
Intake and orchestration tools are winning deals. Private equity owners of the big suites want their cash returns. And let’s not forget, SAP decided to rebuild Ariba from scratch and GEP have rebuilt their S2P platform too.
So, how fast could the decline happen? And will these suites vanish altogether, or shrink into something smaller?
This article weighs the evidence on both sides and gives my honest view on where the market goes next.
I’ll first lean into my natural conviction of being bearish on the big suites, and then later I explain why the bulls might not be entirely wrong.
Thoughts on why S2P suites are doomed
1. Intake and orchestration is moving into S2P territory
I&O (intake and orchestration) tools started as a friendly front door to procurement. Employees ask for what they need in plain language. The tool routes the request and collects approvals. It then pushes the data into either the ERP system or S2P suite.
That front door has grown into a full house.
In January 2026, Gartner named Zip a Visionary in its Magic Quadrant for Source-to-Pay Suites. There was probably a lot of lobbying and investor relations effort involved, but still, it’s a signal.
Zip launched in 2020. It claims to be the youngest company ever to appear in that report.
The incumbents have noticed. Coupa has bought 4 companies in roughly 12 months:
- Cirtuo (category management), May 2025
- Scoutbee (supplier discovery), October 2025
- Rossum (invoice and document processing), May 2026
- Tonkean (intake and orchestration), May 2026
Tonkean is the telling one. When the market leader buys an I&O vendor, it admits its suite had a gap at the front door.
Buying point solutions is the easy part though. Integrating them is harder, because each acquisition brings its own codebase and data model. Customers will judge Coupa on how quickly those pieces feel like one product.
2. Private equity owners want predictable cash
Coupa and Jaggaer sit under PE (private equity) owners. Ivalua, GEP and Zycus remain independent, with founders or management in control.
| Suite | Owner | Deal | Recent move |
|---|---|---|---|
| Coupa | Thoma Bravo (PE) | $8 billion take-private, completed February 2023 | 4 acquisitions in 12 months, including Tonkean |
| Jaggaer | Vista Equity Partners (PE) | Bought from Cinven, August 2024, terms undisclosed | Serves 1,400+ customers |
| Ivalua | Management majority; KKR, Ardian and Tiger Global as minority investors | $60 million round at a $1 billion+ valuation, May 2019 | Still independent |
| GEP | Founder-led and privately held; no major outside funding reported | Founded 1999; bought OpusCapita (e-invoicing), July 2024 | Leader in the 2026 Gartner S2P Magic Quadrant; runs on its GEP Qi agentic AI platform |
| Zycus | Founder-led (CEO Aatish Dedhia) and privately held; no major outside funding reported | Founded 1998; only disclosed funding is a $3 million round around 2000 | Leader in the 2026 Gartner S2P Magic Quadrant; launched Merlin Intake, its own intake tool |
| SAP Ariba | SAP (publicly listed) | $4.3 billion acquisition, 2012 | Next-gen Ariba rebuilt on SAP’s Business Technology Platform |
PE firms buy mature software companies for their recurring revenue. Customers rarely switch S2P suites, because migration is painful and expensive. Source-to-pay software sits close to or at the system of record, making them very sticky. That turns a legacy suite into a cash cow with high retention and predictable renewals.
The danger comes when owners squeeze costs too much when trying to increase margins. R&D budgets feel it first. Customers stay loyal while switching looks harder than staying.
Every renewal tests that loyalty once a CPO becomes more aware of what the challengers are up to. Zip claims it shipped more than 1,200 features in a single year.
3. Suite workflows miss the edge cases
S2P suites handle standard purchases well. A catalogue order or a PO against an existing contract flows through without friction.
The reality though is that day-to-day business on the ground is messier. Think of a marketing agency retainer with a variable monthly fee. Or a software renewal that needs security and legal review before Friday. The suite’s rigid workflow has no path for it, so the requester goes around the system.
Every workaround pushes spend outside the suite. You end up with maverick spend and blind spots in your data. A suite that captures only part of your spend can’t give you a single source of truth.
4. Poor UI/UX kills user adoption
Vendors built legacy suites for experienced procurement professionals. Most people who raise purchase requests are folks like engineers or marketers who buy something a few times a year.
When a simple request needs a training manual, users give up. They email procurement, or they put the purchase on a corporate card. Low adoption means low compliance. Low compliance means the suite never delivers its business case, nor does it provide comprehensive spend data.
SAP drew the obvious conclusion. In October 2025 it announced a rebuild of Ariba from the ground up, with a focus on improved user experience.
5. I&O goes live faster, with fewer consultants
Legacy suite rollouts can run for several months or even years, usually with a systems integrator billing throughout. I&O tools typically go live in under 3 months. Pure Procurement’s 2026 guide puts a single use case, such as software purchase intake, at 4 to 8 weeks.
Internal teams usually run the project with the vendor’s solution consultants. Even when a company brings in an external consulting firm, the project needs far fewer billable hours than a S2P suite.
Benefits start in the same financial year as the investment, which makes the business case much easier to sign off.
| Legacy S2P suites | Intake and orchestration | |
|---|---|---|
| Typical go-live | Months to years | Under 3 months; 4 to 8 weeks for one use case |
| Who implements? | Systems integrator or large consultancy | Internal team plus vendor solution consultants |
| Built for | Procurement professionals | Anyone who needs to buy something |
| User experience | Dated, training-heavy | Plain-language requests inside Slack or Teams |
| Direct spend |
Variable; Ariba and Ivalua offer it, with deep ERP integration |
Limited; ORO Labs is the main exception |
| Historical data | Decades of transactions | A few years at most |
| Examples | SAP Ariba, Coupa, Jaggaer, Ivalua, GEP, Zycus |
Zip, Omnea, ORO Labs, Tonkean, Pivot, Opstream, Levelpath, Vertice |
6. No suite does everything well
The “one platform for everything” pitch has lost credibility.
Most procurement leaders now accept that a suite needs bolt-ons to cover all spend comprehensively. You need a specialist tool to do TPRM (third-party risk management), sustainability, SRM (supplier relationship management) or CLM (contract lifecycle management) properly.
The suites admit this themselves. Coupa, SAP Ariba, Jaggaer and Ivalua all run app marketplaces where third-party tools plug in. A marketplace is a polite way of saying the core product has gaps.
7. Smaller companies can build their own
For companies under $250 million in annual revenue, the build vs. buy maths has changed.
Hire one smart experienced procurement person who’s a hobby builder and tinkerer. Give them no code tools and connectors. They can build intake and supplier onboarding workflows that fit the business exactly.
It won’t have the features of Zip, Omnea and co., but for that size business, does it really need them?
Why legacy Source-to-Pay suites might still have a future
Direct spend remains suite territory
Most I&O tools focus on indirect spend. Direct materials are a different world. Manufacturers need tight ERP integration, bills of materials, demand forecasts and supplier collaboration on production schedules.
ORO Labs is the main exception. It says it supports direct and indirect procurement, and it counts BASF and Danone among its manufacturing customers. For now, most large manufacturers keep direct spend in their suite or ERP.
Zip also announced new product features for manufacturing, although details of what it can actually support are not clear. It appears from their website to only cover capex and MRO, and not direct materials themselves.
The suites, if they play their cards right, can capitalise on this gap.
The data moat
In August 2026, Google won a bankruptcy auction for Spirit Airlines’ corporate data with a $10 million bid. The dataset includes 100 million emails and 500 million Microsoft Teams messages. Google wants it to train AI agents on how real businesses operate. An AI startup, Micro1, then offered $12.5 million for the same data.
That’s just one defunct airline.
Now consider what the legacy suites hold. Coupa says its platform draws on a $10 trillion dataset of spend transactions. Its network connects 3,500+ buyers with 10 million suppliers.
A younger procuretech that was only founded in 2023 can’t buy that history at any price. Legacy vendors could turn that data into AI agents for pricing benchmarks and supplier risk.
Challengers can’t copy that.
Enterprise procurement moves slowly
Procurement is a conservative, risk-averse profession.
Many CPOs spent years and millions of dollars on their current suite. Switching means re-onboarding thousands of suppliers and rebuilding every integration.
Plenty of old guard procurement leaders will choose a “better the devil you know” situation over a risky migration. No CPO ever got fired for playing it safe and renewing an existing Coupa contract.
It depends on the private equity runway
PE owners eventually want an exit. Thoma Bravo has owned Coupa since February 2023. Vista has held Jaggaer since August 2024.
How long each owner keeps investing will decide each suite’s fate more than any feature release. Coupa’s acquisition spree shows Thoma Bravo is still willing to spend. A sale to a bigger software group would keep the products alive, even if the brands change.
Conclusion
Calling time on legacy source-to-pay suites is easy. And I’ll openly admit, I was their grim reaper for a long time. I still am, up to a point.
But even I have to admit that the future scenario, weighing up both sides, is more mixed.
- Yes, the suites are already losing deals to the newer platforms.
- I&O tools will keep winning greenfield projects and tech & professional service companies as customers.
- Expect a few Tier 2 legacy suites to be acquired.
- But I don’t see any of the bigger ones disappearing either, at least in the medium-term.
Direct spend and decades of data give them a decent enough moat. Cautious enterprise buyers with a high dose of angst and a lack of entrepreneurial mindset will keep renewing.
The bigger story is convergence.
Coupa bought Tonkean.
Zip made the S2P Magic Quadrant.
Joël Collin-Demers at Pure Procurement predicts that within 2 years we may stop talking about “I&O vendors” and “S2P vendors” as separate categories.
And I mostly agree with him.
That convergence won’t be total. Suites will keep the heavy transactional plumbing, and I&O tools will own the front door. The winners will be the vendors whose users never notice where one ends and the other begins.
