Table 24 Sept 2026From “What is customer churn?”

Customer retention checklist: what a review should record

Table 2Customer retention checklist: what a review should record

Review field	Question to answer
Unit and population	What is being retained, and who was eligible at the start?
Entry and exit events	Which event starts the clock, and what counts as an exit?
Numerator and denominator	Are both quantities defined at the same grain and boundary?
Window and maturity	What dates apply, and have all cohorts had enough time to mature?
Cuts and missingness	Which segments, revenue views, exclusions, and missing events are visible?
Definition version	Which formula and status rules produced the number?
Owner and decision	Who acts on the signal, and what decision will the next review make?

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Source: Table from this essay. Sources and interpretation are given in the article.

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From the essay

Growth that compounds

What is customer churn?

Customer churn measures account and revenue defection over a defined window. Separate logo churn from revenue churn and voluntary from involuntary loss.

4 Sept 2026

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APA 7

Isoglu, S. (2026). Customer retention checklist: what a review should record [Table]. isoglu.com. https://isoglu.com/insights/exhibits/isoglu-2026-what-is-customer-churn-fig04/

BibTeX

@misc{isoglu-2026-what-is-customer-churn-fig04,
  author = {Isoglu, Sinan},
  title = {{Customer retention checklist: what a review should record}},
  year = {2026},
  howpublished = {Table 2, isoglu.com},
  url = {https://isoglu.com/insights/exhibits/isoglu-2026-what-is-customer-churn-fig04/},
  note = {From the essay {What is customer churn?}}
}

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  <a href="https://isoglu.com/insights/exhibits/isoglu-2026-what-is-customer-churn-fig04/">
    <img src="https://isoglu.com/social/isoglu-2026-what-is-customer-churn-fig04.png" alt="Table 2: Customer retention checklist: what a review should record" width="3200" height="2400">
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  <figcaption>Table 2: Customer retention checklist: what a review should record. Source: Table from this essay. Sources and interpretation are given in the article. <a href="https://isoglu.com/insights/exhibits/isoglu-2026-what-is-customer-churn-fig04/">View exhibit</a>.</figcaption>
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