Overstocked and Understocked at Once: The Demand Planning Disconnect Costing US Companies on Both Ends

A Paradox Playing Out in Warehouses Across America

Walk through the warehouse operations of a mid-sized US manufacturer or distributor, and you are likely to encounter a contradiction that few executives are comfortable discussing openly. On one side of the facility, pallets of finished goods or components sit untouched — ordered months ago based on projections that never materialized into actual demand. On the other side, procurement teams are fielding calls from production managers asking why critical parts are still three weeks out from an Asian supplier.

Excess inventory and production delays existing simultaneously within the same operation is not a coincidence. It is a symptom of a structural planning problem, one that is becoming increasingly expensive as carrying costs rise and customer expectations for responsiveness continue to tighten.

Understanding why this happens — and how to correct it — requires looking honestly at how US companies communicate demand signals to their manufacturing partners in Asia.

How Over-Ordering Becomes the Default Strategy

When US procurement teams lack confidence in their ability to predict what they will need and when, the rational response is to order more than necessary. Buffer stock becomes a substitute for accurate forecasting. The logic is understandable: the perceived cost of running out of inventory almost always feels greater than the cost of carrying a little extra.

But this calculus breaks down in practice. Minimum order quantities on many Asian manufacturing contracts mean that "ordering a little extra" often translates into significant overstock. Seasonal demand swings that procurement teams failed to model accurately compound the problem. And when a product line is revised or a customer relationship changes direction, those surplus components become stranded assets.

The financial consequences are measurable. Warehousing costs, insurance, working capital tied up in idle stock, and the eventual markdown or disposal of obsolete inventory represent a meaningful drag on profitability — one that rarely appears as a discrete line item in budget reviews, which is precisely why it persists.

The Communication Gap That Creates Artificial Delays

While excess stock accumulates in some product categories, delays emerge in others — and the root cause is often the same: insufficient data sharing between the US buyer and the Asian manufacturer.

Manufacturing operations in China and across Southeast Asia are planned in advance. Production slots are allocated, raw materials are sourced, and labor is scheduled based on the orders and forecasts that suppliers receive from their clients. When US companies provide minimal forward visibility — submitting purchase orders close to the required ship date, or failing to communicate changes in demand — manufacturers cannot prepare efficiently.

The result is that orders which could have been accommodated within standard lead times become rush requests. Rush requests compete with other clients' scheduled production. Lead times stretch. And the US procurement team, frustrated by delays, responds by placing earlier orders with larger quantities on the next cycle — which feeds directly back into the overstock problem.

This is not a failure of Asian manufacturing capacity. It is a failure of planning integration.

What Collaborative Forecasting Actually Looks Like

The companies that have broken out of this cycle share a common characteristic: they treat their manufacturing partners as participants in the planning process rather than recipients of purchase orders.

In practical terms, this means sharing rolling demand forecasts — not just confirmed orders — with key suppliers on a regular cadence. It means communicating changes in customer demand or product mix as early as possible, even when those changes are not yet finalized. And it means building enough of a working relationship with the supplier that both sides can have honest conversations about capacity constraints before they become crises.

For US companies working with manufacturers in China, this kind of integration requires investment in communication infrastructure. Regular video calls with production planning contacts, shared access to demand data, and designated points of contact on both sides are foundational. The time zone difference between the US and Asia is real, but it is manageable when both parties are committed to the process.

Advanced partnerships go further, incorporating vendor-managed inventory arrangements or consignment models that align the supplier's incentives with the buyer's actual consumption patterns rather than their projected orders.

The Data That Neither Side Is Using

One underappreciated dimension of this problem is that both US buyers and Asian manufacturers often have access to data that could improve planning — but that data is not being shared or acted upon.

US companies frequently have point-of-sale data, customer order histories, and sales pipeline information that would allow for much more accurate demand forecasting than most procurement teams currently produce. That same data, shared with a manufacturing partner, would allow the supplier to anticipate volume fluctuations and prepare accordingly.

On the manufacturing side, suppliers often have visibility into raw material lead times, production scheduling constraints, and capacity bottlenecks that US buyers are not aware of. When a supplier knows that a particular component has a twelve-week raw material lead time, and the US buyer is submitting orders with an eight-week expected turnaround, a delay is structurally inevitable — but it is also entirely preventable with earlier communication.

The gap is not primarily technological. Most companies already have the tools to share this information. The gap is procedural and relational: the habit of treating the manufacturer as an external vendor rather than an operational partner.

Rethinking the Procurement Relationship

For US procurement leaders, the practical implication is a shift in how supplier relationships are structured and managed. Transactional purchasing — submitting orders, tracking shipments, managing invoices — is a floor, not a ceiling.

The companies that are reducing both excess inventory and production delays are those that have formalized planning touchpoints with their Asian partners, invested in the communication practices that allow real-time adjustments, and built enough mutual understanding that problems surface early rather than late.

This is not about ceding control of the procurement function. It is about recognizing that control exercised without adequate information produces poor outcomes — and that the information required to plan well is largely held by the manufacturing partner on the other side of the Pacific.

The Cost of Inaction Is Already Being Paid

The warehouse full of surplus components and the production delay notice arriving in the same week are not unrelated events. They are two expressions of the same underlying misalignment between what US companies think they need and what they have communicated to their suppliers.

Addressing that misalignment does not require a wholesale restructuring of the supply chain. It requires a deliberate investment in the planning relationship — one that treats demand data as a shared resource and the manufacturing partner as a collaborator in managing it.

For US companies still operating under a purely transactional procurement model, the question is no longer whether better integration would reduce costs. The evidence on that point is clear. The question is how long the current approach can be sustained before the accumulated inefficiency demands a response.