Supplier Performance Management and Supplier Relationship Management are not the same discipline, and confusing the two costs companies more than they realise. SPM measures whether a supplier is meeting contractual obligations: OTIF, quality defects, compliance. It runs on a three-to-twelve-month horizon, involves procurement and operations, and applies to many suppliers at once. SRM builds strategic relationships with a handful of key suppliers, over one to five years or more, with two-way metrics, cross-functional involvement from R&D through leadership, and joint business planning.
Simon Frost, a procurement trainer specialising in sustainable sourcing and category management, laid out the distinction and named what SRM is not: a trophy at year end for the nicest supplier, a paid meal once a year, a published league table, or pillaging suppliers for innovation while pretending both sides win. The post drew procurement directors, category leads, and one specialist who has run more than 800 quarterly business reviews inside Nestlé, Danone, PepsiCo and Zurich. Almost nobody disputed the distinction. What they added was sharper than the framework.
When Good Performance Data Makes Partnership Impossible
The most striking contribution came from Celia Sgar, who has spent sixteen years running QBRs at large consumer goods companies. She rejected the assumption that SPM simply feeds SRM.
“I’ve also seen SPM make SRM impossible. If the scorecard exists only to trigger penalties, the vendor works the scorecard. I had a supplier closing tickets at 3h59 against a 4 hour SLA. Then, reopened two days later, same problem, new ticket number. Never breached once all year. The users hated them.”
Her closing line is the one every procurement leader should sit with. “If you look only at the data, you won’t find anything. I found out because a project manager mentioned it over lunch.”
That is Goodhart’s law arriving in supplier management. A metric that becomes a penalty trigger stops measuring performance and starts measuring compliance theatre. The scorecard was green for twelve months while the service deteriorated.
Joseph Dolan, a packaging cost specialist, described the same pattern from the operational side. “A supplier can technically hit the KPI while creating extra handling, delays, workarounds or cost elsewhere. The numbers tell you what happened, the conversation helps uncover why.”
The Meeting That Says SRM and Does SPM
Sgar identified a structural failure that explains why most SRM programmes never mature. “The other pattern I see is QBRs that spend the full hour on last quarter, then somebody says we’re out of time for the roadmap bit. So the invite says SRM and the meeting does SPM.”
Her fix is worth copying. “I split them now. Numbers monthly with the delivery team at the operational meeting. Quick quarterly overview in the QBR and more focused on the forward conversation and blockers.”
Nueso Group, working on the industrial side, confirmed the mechanism. “The structure usually exists on paper. What fails is the governance meeting itself. A quarterly review that opens with the OTIF and quality dashboard has already become SPM again, whatever the framework says.”
Their prescription reverses the agenda. “The reviews that build something start from the supplier’s roadmap, capacity constraints and where cost can come out of the part, and treat performance as the entry ticket rather than the agenda.”
They added a warning about ownership. “On direct materials the internal owner usually has to include engineering. If procurement owns the relationship alone, the conversation drifts back to price and the structure collapses.”
Duration Is the Wrong Dividing Line
The sharpest challenge to the framework came from Sebastian Schaan, a lead buyer in wine and spirits, who questioned the time horizon as a separator.
“A supplier can be managed for years without ever becoming strategic, while a relatively new relationship can require SRM from day one if dependency, innovation or business risk justify it. For me the better dividing line is not months versus years, but the level of mutual dependence and joint decision-making.”
That correction matters operationally. Length of relationship is easy to measure and tells you almost nothing. A twenty-year commodity supplier may warrant nothing beyond a scorecard. A six-month-old sole-source partner with proprietary technology warrants executive sponsorship immediately.
Juan F. P., a procurement transformation executive, developed the same logic under challenge. His initial position was that SPM data helps decide where SRM investment is worth making. He then refined it. “A supplier can perform perfectly and still require very little relationship investment because the category is highly substitutable. Equally, a poorly performing supplier may deserve significant attention precisely because its capability is difficult to replace.”
His conclusion elevates SPM rather than subordinating it. “SPM provides one important layer of evidence for the SRM decision, but it needs to be combined with criticality, substitutability, dependency and strategic potential. That’s probably an even stronger argument for treating SPM as a discipline in its own right.”
The Question Nobody Answered Easily
Arturo Torres, head of operations at a composites manufacturer, added a dimension most SRM programmes ignore entirely. “A third one we often forget: how the supplier sees us. If we’re a marginal account, no governance committee will build a partnership.”
He then asked the question that produced the most valuable exchange in the thread. “How are you measuring relationship health on the SRM side? That’s the part I find hardest to make objective.”
Sgar’s answer came with an example that should unsettle anyone running a supplier scorecard. “We had a supplier with a big turnover in one of our projects. Three left in a few months. We marked them down on the scorecard for turnover, quarter after quarter. Then I sat with them and asked why. They told me straight. One of our product managers treated their team badly, and people were leaving because of us. My scorecard was punishing them for our own behaviour.”
Her methodological point followed. “A survey would never have got it out of them. The trust comes first, then it’s honesty.”
And her practical solution measures the buyer. “Since then I also started measuring our side too. How many days to pay, days to sign off, meetings we moved. Use this data also to evaluate you as customer if you don’t want to ask them directly.”
That is the most actionable idea in the entire discussion. Days to pay, days to sign off, and meetings cancelled are internal data any procurement function already holds. They require no supplier cooperation and they measure exactly what the supplier experiences.
Give Something Back
Deepak Thiru, a procurement and sourcing manager, named the consequence of scorecard-only management. “Organizations obsessed with SPM metrics and vendor scorecards, then scratching their heads when suppliers stop innovating or share intelligence only with their competitors. SRM requires you to actually give something back, not just grade suppliers on a spreadsheet.”
Artur Kochuev, a senior procurement specialist in oil and gas, described what the upgrade requires. “True SRM starts with deliberate supplier segmentation and focuses deeper engagement on the suppliers that are critical to capacity, technology, resilience, project delivery, or future growth. Performance data creates accountability, while shared objectives, transparent risk discussions, joint improvement plans, and executive sponsorship turn the relationship into long-term mutual value.”
Frederick Magana, a CIPS Fellow, added a timing distinction. “Supplier performance becomes relevant after the contract has been awarded, whereas supplier relationship management is applicable both before and after the contract award phases.”
Vats Kaustubh, a CPO managing over $400 million in spend, made the case for SPM as a value lever rather than a compliance function. “Complex provisions are factored in pricing when agreement is formalised but we stick to plain vanilla deliverables and accept it, thus losing the value we are paying for. SPM is a great way to secure contractual values.”
Takeaways for Procurement Leaders
Three lessons run through the discussion. First, check whether your scorecard is measuring performance or producing gaming. A supplier who never breaches an SLA while users complain constantly is working the metric, and the data will never show it.
Second, split the meetings. Operational performance monthly with the delivery team. The quarterly review opens with the supplier’s roadmap and constraints, not the OTIF dashboard, or it silently becomes SPM again.
Third, measure your own behaviour. Days to pay, days to sign off, meetings you moved. It is the only relationship-health data you can gather without asking a supplier to criticise the customer.
Would your best supplier tell you the truth about your team, and if not, what is your scorecard actually measuring?
GSCC members access events, replays, reports, learning tracks and AI tools covering supplier management and category strategy. See the full benefits at https://gscc.co/benefits.
Continue the discussion on Chain.NET, the global supply chain community, at https://www.chain.net/c/ask.