Quality Cost Is Rising. Which Failures Are Actually Driving It?
Scrap alone understates electronics quality cost. Rework, retest, premium freight, supplier recovery, inspection, customer returns and engineering time should be connected to the defects and jobs that caused them so management can prioritize the right improvements.
The short answer
Cost of poor quality in EMS is larger than scrap. A useful view also includes rework, retest, sorting, additional inspection, premium freight, supplier recovery effort, customer returns, engineering investigation and production disruption. The objective is not to allocate every quality minute perfectly; it is to identify which failure modes consume enough money and capacity to deserve priority.
The same question belongs to the wider A Defect Reached the Customer. Can Your EMS Operation Contain It Fast Enough? operating picture: cost of poor quality has to remain connected to the decisions made before and after it, rather than becoming a separate local control.
Start with visible direct cost
Scrapped components, boards and assemblies are the easiest quality cost to see. Capture them accurately by defect and job. Add rework labor. Repair can make final yield look healthy while consuming significant skilled labor. Include the time where it is material. Include replacement components. A repaired unit may consume additional ICs, connectors or modules. The cost belongs to the quality event, not normal BOM consumption. Include retest. Every repair usually creates more test. Long functional tests can make this a major hidden cost. Include containment inspection. 100% sorting and temporary incoming inspection consume labor and capacity even when no unit is scrapped. Include line disruption. Quality holds and defect investigation can stop constrained resources. Track major downtime where useful.
Include premium logistics
Late defect recovery can require express components, rush subcontracting or premium customer freight. Include supplier-quality effort. Sorting, meetings, return handling and corrective-action work create internal cost even when the supplier later issues a credit. Include customer return handling. RMA administration, repair, replacement and shipping are part of quality economics. Include engineering investigation selectively. Major repeated defects can consume engineering time. Track meaningful effort without trying to time every conversation. Connect cost to defect family. Quality cost becomes actionable when management can see which defect types drive it. Connect cost to product and customer. Some product families or programs may have much higher rework or return burden.
Separate internal and supplier cause
The recovery route differs. Supplier-caused cost can support debit/recovery; internal process cost supports factory improvement. Use total cost to prioritize CAPA. A frequent low-cost defect and a rare catastrophic escape should be evaluated with both economic and risk lenses. Avoid false precision. A practical cost model with consistent categories is better than a theoretical model nobody maintains. Close the loop into pricing and investment. If a product requires chronic special inspection or rework, management should decide whether to improve the process, redesign, reprice or change the service model. Use quality cost as capacity evidence. Rework and retest consume constrained resources that could produce new customer output. COPQ therefore affects both direct cost and effective capacity.
Measure trend after corrective action. When a major defect is fixed, compare later COPQ. The economic improvement helps prove the corrective action created business value.
Avoid double counting
If scrap cost already includes material value, do not add the same material again through another category. Keep the model simple and internally consistent. Use COPQ in supplier and product decisions. Chronic supplier defects or high-repair product designs can look acceptable if purchase price or revenue is viewed alone. Total quality burden provides a better management picture. Separate prevention cost from failure cost. Not every quality-related expense is poor quality. Calibration, planned inspection, training and preventive maintenance are investments in control. COPQ should focus on failure-related burden such as scrap, rework, containment, return and disruption. Keeping this distinction helps management avoid the mistaken conclusion that all quality spending should be reduced. In some cases, a small increase in prevention cost can produce a much larger reduction in failure cost.
Use quality cost by defect family and lifecycle stage. The same defect can create very different cost depending on when it is found. A wrong component caught at kitting may cost minutes. The same error found at functional test adds assembly and test cost. Found by the customer, it adds RMA, freight and reputation risk. Map cost by defect family and detection stage. This helps management prioritize both defect prevention and earlier detection, rather than looking only at total scrap value. Include lost capacity where it changes decisions. A repair technician, tester or SMT line spending time on defects cannot use that time for new output. For constrained resources, the opportunity cost can be material. The company does not need a perfect accounting allocation to use this insight. If one defect family repeatedly consumes the bottleneck, that evidence can justify fixture improvement, supplier action or design change even when direct scrap value appears modest.
Use COPQ to test whether customer-specific requirements are priced. Some customers require extensive additional inspection, traceability, sorting or documentation because of product or program risk. If those activities are normal agreed service, they are not necessarily poor quality. But if they arise because the process is unstable or requirements were never reflected commercially, margin can erode. Review whether recurring quality-related service is part of the intended commercial model or an unpriced recovery burden.
Close quality projects with financial evidence where practical
When a major corrective action succeeds, compare the later scrap, rework, test and return burden with the previous period. The financial improvement does not replace technical evidence, but it helps management understand the value created. It also strengthens future investment cases for tooling, automation, supplier development or process engineering because quality improvement becomes connected to enterprise performance rather than treated only as compliance activity. Use a threshold for detailed quality costing. Not every minor defect needs a full economic study. Define when detailed COPQ capture is worthwhile—high-value scrap, chronic rework, customer escape, constrained-resource impact or recurring supplier defect. Routine small issues can use standard cost assumptions. This keeps the quality-cost model practical enough to maintain.
Connect quality cost to improvement ownership. When a defect family becomes a major COPQ driver, assign an improvement owner and expected economic target alongside the technical objective. The target can be lower rework hours, reduced scrap, fewer retests or less premium freight. Linking cost to ownership turns the report into an action system rather than a retrospective finance exercise. Review hidden customer-service cost. Late quality issues can create repeated calls, status updates, replacement coordination and management escalation. These costs are difficult to measure exactly, but for major recurring escapes they are real. Management can use a reasonable estimate when comparing the business impact of prevention investment against continuing reactive service.
Compare COPQ with gross margin carefully. A high-revenue product can tolerate more absolute quality cost and still be profitable, while a low-margin product may become unattractive with modest rework. Review quality cost in both absolute value and commercial context. This does not mean accepting defects on profitable products; it helps management understand where instability most threatens the business model. Keep the measure stable over time. If the organization changes which costs are included every month, the COPQ trend becomes difficult to interpret. Define a practical standard set of categories and improve it deliberately. Consistency is more valuable than chasing theoretical completeness. Major policy changes should be documented so management knows when periods are not directly comparable.
What management should measure
Track scrap cost, rework labor, replacement material, retest hours, sort/inspection cost, premium logistics, supplier recovery, RMA cost, engineering investigation on major issues, quality hold downtime and COPQ by defect/product/customer.
A practical review
Select the five defect families with the highest combined scrap, rework and customer impact. Compare their total burden with the current improvement priorities. If the biggest quality-cost drivers are not being addressed, reprioritize the program.
Where Epicor Mars fits in cost of poor quality
For cost of poor quality, the key system-design question is how to keep enterprise control and electronics-specific execution on the same operating thread. Epicor provides the enterprise-grade ERP foundation for customer orders, purchasing, inventory, planning, costing, finance, approvals and governance. Epicor Mars extends that foundation with the EMS industry context needed at the point of work, including programming, test and quality events.
That connection is directly relevant to Quality Cost Is Rising. Which Failures Are Actually Driving It?. Scrap alone understates electronics quality cost. Rework, retest, premium freight, supplier recovery, inspection, customer returns and engineering time should be connected to the defects and jobs that caused them so management can prioritize the right improvements. When the Epicor Mars execution record stays tied to the Epicor work order, material and customer context, management can compare the business commitment with what the factory actually executed without maintaining a second source of truth.
For cost of poor quality, that complementary positioning is the point: Epicor remains the enterprise-grade foundation, while Epicor Mars adds the EMS workflows needed to make this particular control operational on the factory floor. Explore Epicor Mars for electronics manufacturing.
Frequently asked questions
Should every quality activity be costed precisely?
No. Use enough accuracy to prioritize meaningful improvement.
Is scrap the best COPQ measure?
No. Rework, retest, returns and disruption can be equally important.
Can supplier credits erase the quality cost?
Not completely. Internal disruption and customer risk may remain.
Why connect COPQ to Epicor?
Because material, labor, purchasing, inventory and financial effects are enterprise transactions; Epicor Mars adds the detailed manufacturing cause.