NPS tells you how customers feel. Mystery shopping tells you which behaviours drive those feelings.
Fixing the behaviours that drive detractors is the fastest way to move NPS.
Customer Experience
How Mystery Shopping Improves Your NPS
6 min read·20 January 2026·
Related insights
NPS tells you how customers feel
Net Promoter Score measures how likely customers are to recommend you. It is a useful loyalty indicator, but it does not tell you which behaviours to change.
Mystery shopping tells you why
By evaluating the specific behaviours that create promoters and detractors, mystery shopping connects NPS to actions your teams can take.
A practical approach
- Analyse NPS comments to find the themes behind detractors
- Design mystery shopping scenarios to test those themes objectively
- Identify the behaviours and processes that cause the problems
- Coach and fix, then track both mystery shopping scores and NPS
Typical links between behaviour and NPS
- Waiting time and communication about delays
- Staff knowledge and confidence
- Ownership of problems and follow-up
- Personal recognition and warmth
Fixing the behaviours that create detractors is usually the fastest way to lift NPS.
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