Record the initial observation
Save the community identifier, starting count and observation time. Note other active acquisition campaigns or membership changes during the order window. These records help explain why a public total may not mirror a single purchase's quantity exactly.
Distinguish the measures
Gross arrivals, departures and net change are different quantities. A member total alone does not reveal every underlying event. If the panel supplies a completion record, report that separately from the observed community change instead of assuming one measurement completely validates the other.
Review coverage using evidence
When a decrease raises a refill question, consult the selected service's actual conditions. Provide dated observations and relevant community changes. A net decline can be useful evidence, but it does not automatically establish an eligible replacement quantity under every offer.
Decision checklist
| Decision | What to check |
|---|---|
| Gross activity | Arrivals and departures separately |
| Net change | Ending count minus starting count |
| Coverage | Terms of the purchased service |
Worked example
In a hypothetical period, 300 people join and 80 leave, producing net growth of 220. Observing only the total cannot identify those two flows. A report should not automatically call the difference between an order quantity and net growth an undelivered amount.
Example figures explain the decision; they are not current prices or promised results.