01The concept in depthEl concepto a fondo
TCO and cost-to-serve: seeing the full financial cost of supply chain decisions›
Total Cost of Ownership (TCO) is the complete cost of procuring and using a product or service over its lifecycle, including all costs that the purchase price does not capture. TCO formula: Purchase price + Ordering cost + Transportation and import cost + Receiving and inspection cost + Carrying cost (20–30% of inventory value/year) + Quality cost (rework, returns, warranty) + Stockout cost (lost sales, emergency orders) + End-of-life cost (disposal, EPR fees). The most common TCO distortion in supply chain: decisions based on purchase price alone, systematically underweighting carrying cost, quality risk, and stockout cost.
Cost-to-serve: the analysis that reveals which customers and channels are actually profitable›
Cost-to-serve (CTS) is the allocation of all supply chain costs to specific customer segments, channels, or individual customers — revealing the true profitability of each commercial relationship after full SC cost is allocated. CTS methodology: (1) Identify all SC cost pools (procurement, warehousing, transportation, customer service, returns). (2) Define cost drivers for each pool (orders placed, shipment frequency, SKU variety ordered, return rate). (3) Allocate each cost pool to customer segments using the relevant cost driver. (4) Compare CTS against gross margin by customer. The typical finding: 20–30% of customers are unprofitable when full CTS is allocated — because they order frequently in small quantities, require specialized handling, or generate high return rates that their margin does not cover.
Activity-Based Costing (ABC): the methodology that makes CTS allocation credible›
Activity-Based Costing (ABC) is the SC cost allocation methodology that traces costs to the activities that generate them, rather than allocating by revenue (which distorts by favoring high-volume customers regardless of their cost to serve). ABC steps for SC: (1) Map all SC activities (receive purchase order, pick and pack, schedule delivery, process return). (2) Identify the resource cost of each activity (labor hours, equipment usage, warehouse space). (3) Define the cost driver for each activity (number of orders, number of lines, number of deliveries, number of returns). (4) Calculate the cost-per-driver unit for each activity. (5) Multiply cost-per-driver by the actual driver units consumed by each customer or SKU. ABC generates the actual cost of serving each customer — which is frequently 2–3× different from the revenue-allocated estimate.
Intermediate vs. Advanced›
Intermediate: understands TCO and CTS concepts; can apply the TCO formula to sourcing decisions; interprets CTS analysis outputs.
Advanced: designs and runs CTS analyses; builds ABC cost models for SC; uses CTS to drive customer profitability management decisions; leads TCO-based sourcing evaluations.
Advanced: designs and runs CTS analyses; builds ABC cost models for SC; uses CTS to drive customer profitability management decisions; leads TCO-based sourcing evaluations.
TCO and cost-to-serve: seeing the full financial cost of supply chain decisions›
Total Cost of Ownership (TCO) is the complete cost of procuring and using a product or service over its lifecycle, including all costs that the purchase price does not capture. TCO formula: Purchase price + Ordering cost + Transportation and import cost + Receiving and inspection cost + Carrying cost (20–30% of inventory value/year) + Quality cost (rework, returns, warranty) + Stockout cost (lost sales, emergency orders) + End-of-life cost (disposal, EPR fees). The most common TCO distortion in supply chain: decisions based on purchase price alone, systematically underweighting carrying cost, quality risk, and stockout cost.
Cost-to-serve: the analysis that reveals which customers and channels are actually profitable›
Cost-to-serve (CTS) is the allocation of all supply chain costs to specific customer segments, channels, or individual customers — revealing the true profitability of each commercial relationship after full SC cost is allocated. CTS methodology: (1) Identify all SC cost pools (procurement, warehousing, transportation, customer service, returns). (2) Define cost drivers for each pool (orders placed, shipment frequency, SKU variety ordered, return rate). (3) Allocate each cost pool to customer segments using the relevant cost driver. (4) Compare CTS against gross margin by customer. The typical finding: 20–30% of customers are unprofitable when full CTS is allocated — because they order frequently in small quantities, require specialized handling, or generate high return rates that their margin does not cover.
Activity-Based Costing (ABC): the methodology that makes CTS allocation credible›
Activity-Based Costing (ABC) is the SC cost allocation methodology that traces costs to the activities that generate them, rather than allocating by revenue (which distorts by favoring high-volume customers regardless of their cost to serve). ABC steps for SC: (1) Map all SC activities (receive purchase order, pick and pack, schedule delivery, process return). (2) Identify the resource cost of each activity (labor hours, equipment usage, warehouse space). (3) Define the cost driver for each activity (number of orders, number of lines, number of deliveries, number of returns). (4) Calculate the cost-per-driver unit for each activity. (5) Multiply cost-per-driver by the actual driver units consumed by each customer or SKU. ABC generates the actual cost of serving each customer — which is frequently 2–3× different from the revenue-allocated estimate.
Intermediate vs. Advanced›
Intermediate: understands TCO and CTS concepts; can apply the TCO formula to sourcing decisions; interprets CTS analysis outputs.
Advanced: designs and runs CTS analyses; builds ABC cost models for SC; uses CTS to drive customer profitability management decisions; leads TCO-based sourcing evaluations.
Advanced: designs and runs CTS analyses; builds ABC cost models for SC; uses CTS to drive customer profitability management decisions; leads TCO-based sourcing evaluations.
02In practiceEn la práctica
Use ABC-based CTS to make the commercial case for minimum order requirements and delivery frequency constraints — CTS data converts a commercial negotiation into a financial management decision›
A sales team that is told "we need to increase minimum order requirements for small customers" will resist. A sales team that is shown "these 212 customers are generating negative contribution of $18.4M MXN/year after full CTS" will propose the solution themselves.
Include inventory carrying cost explicitly in every sourcing TCO calculation — the 20–30% annual carrying cost completely changes the relative attractiveness of low-cost suppliers with high lead times›
A supplier with a 45-day lead time that requires 6 weeks of safety stock generates an inventory carrying cost that often exceeds the 10–15% unit cost advantage the low-cost supplier offers. The carrying cost is real and quantifiable but invisible without explicit TCO calculation.
Run the CTS analysis annually and after major commercial changes — the profitability profile of the customer base changes as order patterns shift›
A customer who was profitable at $15K MXN average order size may become unprofitable if their order size drops to $4K MXN (through order splitting, SKU rationalization, or commercial renegotiation). Annual CTS recalculation catches these profile changes before they compound.
Present CTS findings to Sales and Commercial leadership jointly with Finance — CTS is a cross-functional tool that requires commercial action, not a SC reporting exercise›
The SC team that runs a CTS analysis and presents it only to the Supply Chain Director has done 50% of the work. The commercial action (minimum orders, channel migration, price adjustment) requires Sales and CFO alignment. Present CTS at a joint SC + Finance + Sales leadership session.
Use ABC-based CTS to make the commercial case for minimum order requirements and delivery frequency constraints — CTS data converts a commercial negotiation into a financial management decision›
A sales team that is told "we need to increase minimum order requirements for small customers" will resist. A sales team that is shown "these 212 customers are generating negative contribution of $18.4M MXN/year after full CTS" will propose the solution themselves.
Include inventory carrying cost explicitly in every sourcing TCO calculation — the 20–30% annual carrying cost completely changes the relative attractiveness of low-cost suppliers with high lead times›
A supplier with a 45-day lead time that requires 6 weeks of safety stock generates an inventory carrying cost that often exceeds the 10–15% unit cost advantage the low-cost supplier offers. The carrying cost is real and quantifiable but invisible without explicit TCO calculation.
Run the CTS analysis annually and after major commercial changes — the profitability profile of the customer base changes as order patterns shift›
A customer who was profitable at $15K MXN average order size may become unprofitable if their order size drops to $4K MXN (through order splitting, SKU rationalization, or commercial renegotiation). Annual CTS recalculation catches these profile changes before they compound.
Present CTS findings to Sales and Commercial leadership jointly with Finance — CTS is a cross-functional tool that requires commercial action, not a SC reporting exercise›
The SC team that runs a CTS analysis and presents it only to the Supply Chain Director has done 50% of the work. The commercial action (minimum orders, channel migration, price adjustment) requires Sales and CFO alignment. Present CTS at a joint SC + Finance + Sales leadership session.
03Illustrative caseCaso ilustrativo
Illustrative case built from typical industry values — not data from a specific company.Caso ilustrativo construido con valores típicos de la industria — no son datos de una empresa específica.
Illustrative case: Cost-to-serve analysis — Mexican FMCG distributor, 840 active customers
The company conducts its first ABC-based cost-to-serve analysis across its 840 active customers to identify customer profitability and inform commercial decisions.
The company conducts its first ABC-based cost-to-serve analysis across its 840 active customers to identify customer profitability and inform commercial decisions.
| CTS finding | Customer segment A (top 20% by revenue) | Customer segment D (bottom 20% by revenue) |
|---|---|---|
| Average order size and frequency | Average order: $42K MXN · Order frequency: 2×/month · Delivery route: standard 40-stop route | Average order: $2.8K MXN · Order frequency: 4×/month · Delivery route: off-route single-stop delivery |
| Full CTS allocation (SC costs allocated per customer per ABC methodology) | Revenue: $840K MXN/year · Total CTS: $88K MXN/year · Gross margin: $252K MXN · Net contribution after CTS: $164K MXN (19.5% of revenue) · Profitable | Revenue: $67K MXN/year · Total CTS: $84K MXN/year · Gross margin: $20K MXN · Net contribution after CTS: −$64K MXN (−96% of revenue) · Deeply unprofitable |
| Commercial action recommendation | Priority Segment A: increase service level, dedicated account manager, VMI program | Segment D: minimum order requirement increase ($8K MXN minimum per order) + surcharge for off-route delivery OR migration to distributor/wholesaler channel |
Result: CTS analysis: 212 of 840 customers (25%) generating negative net contribution after full SC cost allocation. Total annual margin destruction from unprofitable customers: $18.4M MXN/year. Commercial interventions (minimum order requirements + delivery surcharges for 180 customers; account termination recommendation for 32 extreme cases): projected annual contribution improvement of $12.8M MXN, at zero incremental investment.
Illustrative case built from typical industry values — not data from a specific company.Caso ilustrativo construido con valores típicos de la industria — no son datos de una empresa específica.
Case: Cost-to-serve analysis — Mexican FMCG distributor, 840 active customers
The company conducts its first ABC-based cost-to-serve analysis across its 840 active customers to identify customer profitability and inform commercial decisions.
The company conducts its first ABC-based cost-to-serve analysis across its 840 active customers to identify customer profitability and inform commercial decisions.
| CTS finding | Customer segment A (top 20% by revenue) | Customer segment D (bottom 20% by revenue) |
|---|---|---|
| Average order size and frequency | Average order: $42K MXN · Order frequency: 2×/month · Delivery route: standard 40-stop route | Average order: $2.8K MXN · Order frequency: 4×/month · Delivery route: off-route single-stop delivery |
| Full CTS allocation (SC costs allocated per customer per ABC methodology) | Revenue: $840K MXN/year · Total CTS: $88K MXN/year · Gross margin: $252K MXN · Net contribution after CTS: $164K MXN (19.5% of revenue) · Profitable | Revenue: $67K MXN/year · Total CTS: $84K MXN/year · Gross margin: $20K MXN · Net contribution after CTS: −$64K MXN (−96% of revenue) · Deeply unprofitable |
| Commercial action recommendation | Priority Segment A: increase service level, dedicated account manager, VMI program | Segment D: minimum order requirement increase ($8K MXN minimum per order) + surcharge for off-route delivery OR migration to distributor/wholesaler channel |
Result: CTS analysis: 212 of 840 customers (25%) generating negative net contribution after full SC cost allocation. Total annual margin destruction from unprofitable customers: $18.4M MXN/year. Commercial interventions (minimum order requirements + delivery surcharges for 180 customers; account termination recommendation for 32 extreme cases): projected annual contribution improvement of $12.8M MXN, at zero incremental investment.
04How it is measuredCómo se mide
Supply Chain Cost as % of Revenue (total SC operating cost / total revenue)›
Supply Chain Cost as % of Revenue (total SC operating cost / total revenue)
Σ (Procurement operations + Warehousing + Outbound logistics + Customer service + Reverse logistics) / Total revenue × 100
Benchmark: FMCG 8–12% · Industrial manufacturing 10–18% · Pharmaceutical 5–9% · E-commerce 15–25% · Automotive 6–10%
⚠️ A supply chain cost of 22% of revenue in an FMCG company (industry benchmark: 8–12%) means the company is spending $10M MXN/year more in SC costs than an industry-average competitor on every $100M MXN in revenue. This gap is the business case for a supply chain transformation.
% of Customers with Positive Net Contribution after Full CTS Allocation›
% of Customers with Positive Net Contribution after Full CTS Allocation
(Customers with net margin > 0 after full SC activity-based cost allocation / Total active customers) × 100
Benchmark: >80% of customers with positive net contribution in well-managed customer portfolios · <70% indicates significant unprofitable customer volume that is destroying margin
🔑 A customer portfolio with 25% unprofitable customers (after CTS) means the company is cross-subsidizing 210 customers from the margin generated by the other 630. This cross-subsidy is invisible without CTS analysis — which is why most companies continue it indefinitely.
Supply Chain Cost as % of Revenue (total SC operating cost / total revenue)›
Supply Chain Cost as % of Revenue (total SC operating cost / total revenue)
Σ (Procurement operations + Warehousing + Outbound logistics + Customer service + Reverse logistics) / Total revenue × 100
Benchmark: FMCG 8–12% · Industrial manufacturing 10–18% · Pharmaceutical 5–9% · E-commerce 15–25% · Automotive 6–10%
⚠️ A supply chain cost of 22% of revenue in an FMCG company (industry benchmark: 8–12%) means the company is spending $10M MXN/year more in SC costs than an industry-average competitor on every $100M MXN in revenue. This gap is the business case for a supply chain transformation.
% of Customers with Positive Net Contribution after Full CTS Allocation›
% of Customers with Positive Net Contribution after Full CTS Allocation
(Customers with net margin > 0 after full SC activity-based cost allocation / Total active customers) × 100
Benchmark: >80% of customers with positive net contribution in well-managed customer portfolios · <70% indicates significant unprofitable customer volume that is destroying margin
🔑 A customer portfolio with 25% unprofitable customers (after CTS) means the company is cross-subsidizing 210 customers from the margin generated by the other 630. This cross-subsidy is invisible without CTS analysis — which is why most companies continue it indefinitely.
05What you would useQué se usa
📌 SC Cost Analysis Platforms
SAP Profitability and Performance Management (PaPM) / Oracle Profitability and Cost Management›
Module: ABC-Based SC Cost Allocation
SAP PaPM and Oracle PCM are the reference platforms for Activity-Based Costing in supply chain — enabling allocation of SC activity costs to customers, products, and channels using ABC drivers.
SAP PaPM and Oracle PCM are the reference platforms for Activity-Based Costing in supply chain — enabling allocation of SC activity costs to customers, products, and channels using ABC drivers.
Power BI + SAP S/4HANA cost center data / Tableau + ERP data›
Module: SC Cost Dashboard & CTS Reporting
Power BI and Tableau connected to ERP cost center and order management data are the reference BI platforms for building supply chain cost and cost-to-serve dashboards without full ABC platform implementation.
Power BI and Tableau connected to ERP cost center and order management data are the reference BI platforms for building supply chain cost and cost-to-serve dashboards without full ABC platform implementation.
📌 SC Cost Analysis Platforms
SAP Profitability and Performance Management (PaPM) / Oracle Profitability and Cost Management›
Module: ABC-Based SC Cost Allocation
SAP PaPM and Oracle PCM are the reference platforms for Activity-Based Costing in supply chain — enabling allocation of SC activity costs to customers, products, and channels using ABC drivers.
SAP PaPM and Oracle PCM are the reference platforms for Activity-Based Costing in supply chain — enabling allocation of SC activity costs to customers, products, and channels using ABC drivers.
Power BI + SAP S/4HANA cost center data / Tableau + ERP data›
Module: SC Cost Dashboard & CTS Reporting
Power BI and Tableau connected to ERP cost center and order management data are the reference BI platforms for building supply chain cost and cost-to-serve dashboards without full ABC platform implementation.
Power BI and Tableau connected to ERP cost center and order management data are the reference BI platforms for building supply chain cost and cost-to-serve dashboards without full ABC platform implementation.
All D21 componentsTodos los componentes de D21D21 artifactsArtifacts de D21SCRA