Complaints Management System and CPMU
"That's How We've Always Done It" Is Not a Quality System
One of the most impactful projects I've delivered didn't involve a manufacturing process, a customer complaint investigation, or a major cost-saving initiative.
It involved fixing the way the business handled complaints.
When I first took responsibility for customer complaints, I quickly realised there wasn't actually a complaints management process.
There was a habit.
The process consisted largely of:
"That's how we usually do it."
Every complaint was handled differently.
Customer communication varied depending on who was involved.
Investigations were inconsistent.
And in most cases, the Quality department was trying to solve problems alone.
The result?
Limited visibility.
Limited accountability.
Limited opportunity for organisational learning.
The Challenge
The problem wasn't that people didn't care.
The problem was that there was no structure.
Without a defined process, complaints remained isolated events rather than opportunities to improve the business.
I set out to build a complete complaints management system from the ground up.
Step 1: Create Visibility
The first thing I introduced was a complaint tracking system.
For the first time, we could consistently capture:
• Complaint details• Customer information• Product data• Investigation status• Corrective actions• Closure dates
What had previously been scattered across emails and conversations became visible.
Step 2: Create Accountability
Next came the process itself.
I developed a formal complaints procedure with clear escalation points and defined responsibilities.
Most importantly, complaints would no longer be viewed as a Quality Department issue.
Production, Engineering, Planning, Logistics and other relevant departments became active participants throughout the investigation process.
The message was simple:
Quality owns the process. The business owns the problem.
Step 3: Standardise Customer Communication
One of the biggest improvements came through consistency.
I created templates for:
✅ Complaint acknowledgement
✅ Containment actions
✅ Investigation updates
✅ Resolution reports
Customers now knew what to expect and when to expect it.
Step 4: Improve Investigation Quality
Initially, gaining engagement was difficult.
Nobody enjoys seeing complaints land on their desk.
But over time, accountability became routine.
Departmental involvement increased.
The Quality team was upskilled in structured root cause analysis.
Investigations became deeper, more evidence-based, and more effective.
The Results
The impact extended far beyond complaint handling.
✔ Increased visibility across all departments
✔ Better cross-functional accountability
✔ Improved root cause analysis capability
✔ More positive customer feedback on complaint management
✔ Data trends captured for the first time
✔ Greater understanding of complaint drivers
The final piece of the puzzle was introducing a CPMU (Complaints Per Million Units) metric.
This transformed conversations internally and externally.
Rather than discussing isolated complaints, we could now understand:
Complaint frequency
Product-specific trends
Key failure modes
Emerging risks
Performance over time
We shared this data with customers, creating greater transparency and trust.
In fact, some customers adjusted their performance KPIs for us based on the improved visibility we were able to provide.
The Lesson
Many businesses think they have a complaints process.
What they often have is a collection of habits.
A good complaints management system doesn't just resolve customer issues.
It creates accountability, drives improvement, builds customer confidence, and turns complaints into a strategic source of business intelligence.
That's when complaints stop being a problem and start becoming an asset.
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