Keu Takeaways
- A supplier can be critical to production even if it represents a very small line item on your spend report.
- The best way to identify critical suppliers is to look at business impact and how difficult they are to replace, not cost alone.
- Webinar polling showed that while most respondents had identified at least some critical suppliers, only 34% said all of them were named in their continuity plans.
The supplier that can stop production may barely show up on your spend report.
A low-cost component, specialized service, logistics provider, or technology dependency can become a production bottleneck when operations cannot continue without it, and alternatives are difficult to put in place.
That is why procurement spend alone is a poor proxy for supplier criticality.
For manufacturers, a more useful test looks at two factors:
- The operational impact if the supplier fails
- How difficult that supplier would be to replace
Together, impact and substitutability can expose supplier dependencies that spend analysis alone will miss.
Spend Does Not Equal Criticality
Large suppliers naturally attract attention inside any enterprise. They represent significant spend, major contracts, and visible commercial relationships.
Continuity risk does not always follow the same pattern.
A high-spend supplier with several qualified alternatives may be easier to replace than a small supplier that produces one specialized component with a long requalification period.
On the flip side, a second supplier may represent far less spend while creating far greater production exposure.
Continuity-critical suppliers typically share two characteristics:
- High impact: Their failure could materially affect production, customer commitments, revenue, safety, quality, compliance, or another important business outcome.
- Low substitutability: Moving to another supplier would take significant time or effort because of qualification requirements, specialized tooling, technical constraints, limited capacity, or a small supplier market.
Harold Nwariaku, Head of CIPS Americas, described this as the “continuity-critical supplier test” during a recent Fusion webinar with the Chartered Institute of Procurement & Supply.
The Low-Cost Component that Stops the Production Line
Bottling crowns provide a useful manufacturing example.
The metal caps used to seal bottles cost pennies. On a spend report, they can look insignificant.
Production tells a very different story.
Without the crowns, filled bottles cannot be sealed, and finished product cannot leave the plant. If only a small number of suppliers are qualified to produce the required crown and liner, moving to a new source may require testing and requalification that takes months.
The item is inexpensive.
The dependency is critical.
That is exactly the kind of supplier a spend-based view can overlook.
And the same pattern can appear elsewhere in manufacturing: a specialized raw material, replacement part, logistics service, technology provider, utility, or other input may represent a small portion of total spend while supporting an essential stage of production.
Many Organizations Are Still Finding Their Critical Suppliers
Our webinar attendees showed how difficult it can be to build a complete picture.
When we asked whether continuity plans name continuity-critical suppliers:
- 34% said all of them
- 47% said some of them
- 8% said no
- 11% did not know
In other words, 81% of respondents said their plans named at least some continuity-critical suppliers, but only 34% could say all of them were included.
This was a poll of webinar attendees, not a representative industry study. Even so, the gap is useful.
Most respondents had begun identifying supplier dependencies. Nearly two-thirds couldn’t say that every continuity-critical supplier was accounted for.
For manufacturers, finding those missing dependencies starts with looking beyond supplier size and spend.
Assess the Impact on Production
The first part of the criticality test is the consequence of losing the supplier.
That assessment should connect the supplier to what the business needs to deliver, including the products, production processes, plants, services, and customer commitments that depend on it.
Potential impact could include:
- Production interruption
- Missed customer commitments
- Delayed shipment of finished goods
- Revenue loss
- Safety consequences
- Quality or regulatory issues
- Disruption to downstream plants or processes
Existing business impact analysis can help provide this context.
The important step is connecting the supplier to its operational role. A supplier record tells you who the organization buys from. A dependency view tells you what the business may lose when that supplier becomes unavailable.
That connected view is central to supply chain resilience for manufacturing.
Then Assess Substitutability
An alternate supplier on a list does not necessarily mean the dependency is easy to replace.
A realistic substitutability assessment should consider at least three things.
- Time to switch. Would another supplier be ready in days, weeks, or months?
- Complexity. Would changing suppliers require new tooling, testing, technical validation, quality approval, contractual changes, or regulatory requalification?
- Capacity. Could the alternate supplier actually absorb the required volume during a disruption?
This last point is easy to underestimate. A supplier may be qualified on paper but have little spare capacity when multiple customers are competing for the same supply.
Impact tells you how much the supplier matters. Substitutability tells you how exposed you are if that supplier fails.
Focus Continuity Effort Where It Matters Most
Not every supplier requires the same level of governance.
A supplier with limited operational impact and multiple readily available alternatives may need standard controls. Whereas a supplier capable of stopping production for weeks or months deserves much greater attention.
That could include stronger continuity requirements, alternate-sourcing strategies, more evidence of recovery capability, deeper monitoring, and joint exercises.
This kind of prioritization becomes especially important for manufacturers managing thousands of suppliers. Treating every relationship as equally critical spreads time and resources across the supply base instead of concentrating them where disruption would cause the greatest operational harm.
For supply chain leaders, the value comes from connecting supplier risk with the wider operating environment, including plants, products, production schedules, technology, inventory, facilities, logistics, and customer commitments.
Find the Suppliers Your Production Cannot Easily Replace
Manufacturers already collect significant information about supplier spend, quality, financial condition, risk, and performance.
Continuity criticality adds another lens.
Start with the suppliers connected to important products and production processes. Assess what happens operationally if each one becomes unavailable. Then determine how quickly and realistically another source could take over.
That is how a low-cost supplier stops being a rounding error on a spend report and becomes visible for what it really is: a dependency production cannot afford to overlook.
Fusion and CIPS explored the continuity-critical supplier test, contracting, supplier evidence, exercises, and governance in Your Plans Are Only as Strong as Your Suppliers: Protecting Production When Disruption Hits.
Authors
