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HOOGResearch & Advisory

Retail & E-commerce

Mystery Shopping and Store NPS Programme for a Supermarket Chain

Measuring service standards and shopper loyalty store by store to close performance gaps.

Example engagement
Client
Regional supermarket chain
Industry
Retail & E-commerce
Geography
India (South)
Duration
6 weeks setup + quarterly waves
Capabilities
Customer & Consumer Insights

Research design at a glance

How the work is structured

India (South) · 6 weeks setup + quarterly waves

  1. 1

    Mystery shopping

    Monthly visits against a standards checklist.

  2. 2

    Post-visit NPS survey

    Receipt and app invitations after shopping trips.

  3. 3

    Store audits

    Availability, cleanliness and checkout waiting time.

  4. 4

    Store manager workshops

    Sharing results and agreeing action plans.

Qualitative depth

Interviews, groups & observation

  • Mystery shops per store per quarter~4

Quantitative scale

Surveys, audits & measurement

  • NPS responses per quarter~3,000

Sample sizes are indicative of a typical design for this type of question; real engagements are scoped to the decision.

01

Client context

Sales per store varied widely across the chain, and management suspected service quality was a cause.

02

Business challenge

Store visits by managers were irregular and subjective, and there was no shopper loyalty measure.

03

Research objective & questions

Set up consistent store-level measurement of standards and shopper loyalty, and link the two.

  • How consistently do stores meet service and operating standards?
  • How likely are shoppers to recommend each store?
  • Which parts of the visit drive loyalty?
  • Which stores need help first?

04

Methodology & approach

Mystery shopping
Monthly visits against a standards checklist.
Post-visit NPS survey
Receipt and app invitations after shopping trips.
Store audits
Availability, cleanliness and checkout waiting time.
Store manager workshops
Sharing results and agreeing action plans.

05

Sample & geography

  • ~4 mystery shops per store per quarter
  • ~3,000 NPS responses per quarter
  • Geography — India (South)

06

Key findings

  • Fresh produce quality and checkout waiting time drove NPS most.
  • Stores with low staff availability scored lowest on both measures.
  • Standards compliance varied more by shift than by store.
  • Loyal shoppers noticed and valued staff who knew the range.

07

Business implications

  • Prioritise fresh quality and checkout staffing at peak times.
  • Train evening shifts on core standards.
  • Recognise high-performing stores and staff.

08

Outcome

The chain received store scorecards, an NPS driver map and a quarterly improvement process.

Example engagement — Shows how Hoog approaches this type of question. Not a specific client project. Findings are directional.

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