Supply continuity for OEMs: why the lowest price is not enough

For an OEM in the metering sector, material availability, lead-time predictability and the ability to respond to disruptions contribute to industrial cost alongside unit price.

The price has been negotiated, the order has been confirmed and the delivery date has been entered into the production plan.

Then the shipment does not leave.

Supply continuity is measured precisely in the gap between an order confirmation and a product that is actually available on the production line on the planned day.

A material is unavailable, production capacity has already been allocated, or the timing stated in the quotation is no longer sustainable. One component is missing and the finished product cannot be completed, tested or shipped.

In this situation, even purchasing at a significantly lower price does not necessarily generate a saving: the price remains visible in the ERP system, while the cost of the missed delivery is spread across production, personnel, logistics, planning, quality, procurement and the relationship with the end customer.

The cost that does not appear in the bill of materials

The unit price is easy to compare: two suppliers, two quotations and a percentage difference that can be read immediately.

The industrial cost of supply is broader: it includes capital tied up in inventory, the risk of obsolescence, the work required to qualify an alternative and the expected cost of a disruption.

A late delivery may force the OEM to reschedule production, reassign personnel, use urgent shipments or purchase substitute materials on less favourable terms. This, in turn, may require additional technical checks, changes to the bill of materials and the accelerated qualification of alternative suppliers and components.

A prolonged line stoppage is not required for the impact to become significant. Even a delay of a few days can create a chain reaction when the missing component prevents the finished product from being completed, tested or delivered.

The correct comparison is therefore not limited to price, but concerns the total risk-weighted cost: the unit price describes the purchasing cost of the component, while continuity describes the reliability of the system that must make it available.

An order confirmation does not prove that materials and capacity have already been allocated

An order confirmation has commercial and contractual value. On its own, however, it does not prove that raw materials and production capacity have actually been allocated, unless the supply programme explicitly provides for this.

This distinction has become particularly evident in the market for printed circuit board materials. On 9 April 2026, Panasonic Industry announced, effective 1 May, a 30% increase for copper-clad laminates and a 20% increase for prepregs used in glass-epoxy multilayer circuits. On 26 June, it announced a second revision, with further increases of 20% and 25% on the prices then in force, applicable to shipments from 1 August. During the same period, JLCPCB introduced material-linked dynamic pricing and stated that, when demand exceeds available capacity, allocation may also depend on the continuity of the relationship, order structure, planning and raw-material availability.

These figures do not constitute a universal PCB price index: they concern specific materials, categories and suppliers. They do, however, show how quickly costs, availability and capacity-allocation criteria can change.

In a market under pressure, a commercial forecast helps the supplier understand future demand, but it does not automatically amount to a reservation. Continuity must be built before the order through updated forecasts, a confirmed time horizon, allocation rules and consistent volume commitments.

Stock, capacity and dual sourcing: continuity is built in advance

Accumulating components does not automatically reduce risk. A material bank is useful when it links stock to a precise programme and clearly defines:

• which materials are critical and their replenishment lead times;
• who owns the stock and which orders or product families it is assigned to;
• which minimum levels must be maintained and under what replenishment rules;
• how minimum quantities, non-cancellable commitments, shelf life and potential obsolescence are managed.

Physical availability is only part of the issue: having the material without an available production window does not guarantee delivery, while having free capacity without all the required components does not allow work to begin.

The same applies to dual sourcing: an alternative supplier is genuinely useful only if it has been assessed and qualified before the emergency. In metering, an apparently simple substitution can affect accuracy, thermal stability, electromagnetic compatibility, the assembly process, operating life and product conformity.

The independence of the second source must also be verified: two suppliers may depend on the same laminate manufacturer, the same plant or the same geographical area. A technically approved source with no regular volumes or agreed capacity may also be unavailable when it is needed.

Continuity therefore results from coordination between materials, production capacity, qualified alternatives and up-to-date information.

Lead time must be managed with the rigour of a specification

Lead time is often stated alongside price and payment terms, as though it were primarily a commercial figure. For an OEM, however, it determines the required inventory level, the ability to amend an order, the response to an increase in demand and the capacity to recover from a delay.

How to assess lead time

Declaring a number of weeks is not enough. It is necessary to define:

• the event that starts the count and the point at which it ends;
• the difference between the requested date and the confirmed date;
• which materials and how much capacity are already available;
• how much of the time depends on procurement and how much on production;
• whether the figure is a historical average, an indication or a commitment within the programme;
• the level of punctuality the supplier has demonstrated on actual deliveries.

An average lead time of eight weeks can describe two very different levels of performance. One supplier may consistently deliver in eight weeks; another may alternate between four, eight and twelve weeks, maintaining the same average while making planning much more difficult.

For this reason, in addition to duration, it is useful to examine variability and indicators such as punctuality against the confirmed date or complete delivery within the agreed time. When assessing lead time, duration is not the only consideration: predictability matters as well.

Continuity is a shared responsibility

No credible supplier can promise that a shortage will never occur. It cannot guarantee that any quantity will always be available, that every price will remain unchanged or that no material will be discontinued.

It can, however, make verifiable commitments: define when materials and capacity are allocated, provide transparency on stock coverage, communicate a critical issue quickly, manage changes in a controlled manner, prepare a recovery plan and activate it when necessary.

The OEM also contributes to continuity: a reliable forecast, a confirmed horizon, stable specifications and timely decisions allow the supplier to purchase materials, commit capacity and prepare alternatives at a level of risk that is sustainable for both parties.

Before selecting a partner, it is therefore advisable to ask:

• when an order confirmation results in the effective allocation of materials and capacity;
• how stock is built and assigned;
• what level of punctuality the supplier has achieved against confirmed dates;
• which alternative materials and sources have already been qualified and how independent they are from one another;
• how long the verification of a substitution takes and which approvals it may involve;
• how upstream suppliers and change or end-of-life notifications are monitored;
• who is informed when a risk emerges, within what timeframe and through which escalation path;
• which continuity measures are in place if the production site becomes unavailable.

These questions do not produce an immediate comparison like a percentage difference in price. They do, however, describe more precisely the ability of the supplier and the customer to maintain the production programme together.

From order confirmation to delivery: how Herholdt Controls works

At Herholdt Controls, procurement, design, firmware development, validation and production are part of the same technical chain. When a component must be replaced, the engineering assessment, tests in the in-house laboratory and the update of the production process are coordinated at the same site and within the same programme.

The same principle applies to customer communication. A supply risk is reported while alternatives are still open, not after delivery has already been compromised, and it is presented with a verified technical overview: the components involved, affected orders, available options and verification times. The questions listed above are the same questions Herholdt Controls answers for its customers before the order is placed.

This model does not eliminate supply risk, but it shortens the distance between the first warning sign and a verified technical decision, connecting material planning to the actual requirements of the project.

For an OEM, purchasing a meter also means purchasing the support required to integrate it and the supplier’s ability to produce and deliver it continuously. The correct comparison is not merely between two unit prices, but between two capabilities to maintain the production programme.