Growth is usually easy to see.
Sales rise.
Order volume increases.
New customers come onboard.
More product moves through the warehouse.
But there is another question that is much harder to answer:
Did the operation make more money doing it?
For many distributors, that answer is surprisingly difficult to determine.
Not because financial reporting is poor.
Because traditional revenue and gross-margin reporting often stops before the warehouse, customer-service team, transportation operation, inventory burden, and exception handling have finished doing the work.
That is where cost-to-serve becomes important.
Volume Can Hide Bad Economics
Wholesale activity remains enormous.
U.S. Census Bureau data show merchant-wholesaler sales of $794.1 billion in June 2026, 14.1% above June 2025, while inventories reached $944.7 billion, 4.2% higher year over year. The Census figures are seasonally adjusted but not adjusted for price changes, so they should be read as a measure of nominal activity rather than pure real-volume growth. (U.S. Census Bureau, 2026).
At the same time, logistics remains a major cost center across the economy. CSCMP’s 2026 State of Logistics Report puts U.S. business logistics costs at approximately $2.4 trillion, representing 7.8% of GDP. The report identifies labor and productivity constraints, financial conditions, trade realignment, and energy volatility among the structural forces shaping logistics performance. (CSCMP, 2026).
For an individual distributor, the practical lesson is straightforward:
Moving more product does not automatically mean becoming more profitable.
Sometimes it means performing more expensive work.
Revenue Does Not Measure Operational Demand
Imagine two customers generating the same annual gross margin.
Customer A sends predictable, full-case orders, accepts standard delivery windows, has few returns, and rarely requires customer-service intervention.
Customer B places frequent small orders containing slow-moving items, requests special labeling, creates urgent shipments, requires manual documentation, changes orders after release, and generates frequent billing disputes.
From a sales report, the customers may look similar.
Operationally, they are not even close.
That difference is cost-to-serve.
It is the work required after the sale is made.
Receiving.
Storage.
Inventory carrying.
Replenishment.
Picking.
Special handling.
Transportation.
Returns.
Customer service.
Documentation.
Claims.
Billing exceptions.
None of those activities is inherently bad. The problem occurs when the organization cannot see them.
Find the Expensive Normal
The biggest profit leaks in distribution are often not catastrophic mistakes. They are routine exceptions that have become normal.
An account that always requires a rush.
A customer whose labels are always manual.
A product that consumes disproportionate storage space.
An order profile that sends pickers repeatedly across the facility.
A 3PL service that employees perform but billing does not consistently capture.
A delivery route with poor stop density.
A customer-service requirement that looked minor during the sales process but now consumes hours every week.
Individually, they rarely trigger alarms.
Collectively, they change the economics of the account. This is why cost-to-serve analysis should not begin with a complicated enterprise model.
Start by identifying where the operation performs work that is variable, customer-specific, and frequently invisible to pricing. That is usually where the story starts.
For 3PLs, Service Complexity Is the Product
Cost-to-serve is especially important for third-party logistics providers because almost every operational variation can become part of the commercial relationship.
Storage.
Inbound handling.
Outbound handling.
Relabeling.
Kitting.
Special projects.
Returns.
Expedited work.
Accessorial services.
The operational question is not simply whether employees performed the work. It is whether the system captured the activity accurately enough for the business to get paid for it.
That capability is becoming part of customer expectations. The 2026 Annual Third-Party Logistics Study found that 90% of shipper respondents consider technology capabilities critical when selecting a 3PL, but only 57% said they were satisfied with providers’ technology capabilities. Sixty-one percent of shippers identified advanced analytics as an IT need. (Annual Third-Party Logistics Study, 2026).
That “IT gap” is not just a technology problem. It is a visibility problem.
Customers increasingly want a provider that can tell them what happened.
When.
Why.
At what service level.
And increasingly, what it means.
For Wholesale and Convenience Distributors, Mix Changes the Equation
Wholesale and convenience distributors face a different version of the same problem. Not all revenue creates the same operational burden.
A high-velocity case item behaves differently from a slow-moving each-pick SKU.
A weekly delivery behaves differently from a daily emergency order.
Shelf-stable product behaves differently from short-dated fresh product.
The convenience channel illustrates why product mix matters. NACS reports that foodservice represented roughly 28% of in-store sales in 2025 but 38.9% of in-store gross-profit dollars. The category creates meaningful opportunity for retailers, but it also introduces additional operational considerations around freshness, replenishment, expiration, and waste. (NACS, 2026).
For the distributor supporting that changing mix, the opportunity can be substantial.
So can the complexity.
That does not make fresh or high-service business unattractive. It means the operation needs to understand what the service actually costs.
Turn Cost-to-Serve Into Action
A useful first model does not need 200 cost categories.
Start with four lenses.
Customer: How much operational effort does this account generate relative to its margin?
Order: Which order profiles require the most touches, travel, exceptions, and expedited work?
Product: Which SKUs create disproportionate storage, handling, replenishment, spoilage, or inventory burden?
Service: Which value-added activities are performed frequently but priced poorly—or not captured at all?
Then connect operational activity to commercial decisions.
The answer may come down to pricing, minimum order requirements, delivery frequency, slotting, or automation. In other cases, the opportunity is operational, such as eliminating an unnecessary manual process or simply ensuring the distributor consistently bills for a service the customer has already agreed to pay for.
Cost-to-serve is not a reason to fire every difficult customer.
It is a reason to stop making profitability decisions without seeing the work behind the revenue.
Profitable Growth Requires Visibility
For years, distributors have invested heavily in seeing inventory more clearly.
The next opportunity is seeing economics more clearly.
Which customers are growing profitably?
Which products create avoidable handling cost?
Which services create value?
Where are employees performing work that never reaches an invoice?
Where does operational complexity exceed commercial return?
These questions require ERP, WMS, transportation, billing, and business-intelligence data to tell the same story.
That is the real opportunity.
Not another dashboard. A better decision.
Because there is a point where more volume stops being a sign of progress.
It becomes work. And the distributors positioned to grow most effectively will be the ones that understand the difference.
Revenue tells you how much business you won.
Cost-to-serve helps tell you whether it was worth winning.
Actionable takeaways
- Build a first-pass cost-to-serve model for the top 20 customers rather than waiting for a perfect enterprise model.
- Identify customer-specific manual tasks, exceptions, special handling, and unbilled accessorial work.
- Compare profitability by order profile, delivery frequency, SKU complexity, and service requirement—not revenue alone.
- Connect operational activity capture to billing so completed work does not depend on memory or paperwork.
- Review cost-to-serve monthly alongside sales and gross margin so operational changes become commercial decisions.
Sequoia Group helps distributors and 3PLs connect operational data with business intelligence, ERP, WMS, billing, and workflow automation. The goal is not more reporting. It is seeing where the business is creating value… and where operational complexity is quietly consuming it.
