Trial Conversion Cohort Window Check

Keep trial-start cohorts and conversion windows explicit when comparing subscription conversion rates. Preparation only, not an account action.

What to provide

This is a custom cohort review under the supplied policy, not a claim to reproduce Stripe's native 30-day rolling conversion metric. Trial-start IDs/dates; conversions/dates; observation cutoff; eligibility policy; cohort definitions; account and currency context.

How it works

1. Group by trial start rather than conversion date unless the supplied metric says otherwise.
2. Record the allowed window and whether every trial had time to complete it.
3. Separate matured, converted, still-observing and ineligible trials.
4. Calculate rates only under the supplied denominator policy; do not label incomplete cohorts failures.

The output

cohort | window | eligible | matured | converted | observing | rate_basis | hold

Worked fictional example

Fictional 10 eligible matured trials and 4 conversions yield 40%. Another 3 newly started trials still observing are not added to that denominator. Different windows remain incomparable.

Checks and limits

Keep source versions and original values. Unknowns stay unknown. Use qualified review for regulated, legal or hiring decisions. No live account compatibility test, send, share, schedule, ledger change or payment is authorized.

More founders workflows · How-to guides

Method: reviewed source. Demand lead: Oct8 live GSC through Oct5: marketing copilot 37 impressions, Planable/Claude 33 and Planable/ChatGPT 23, campaign brief 12 and reports 11. Marketing/social topics follow these parent-query leads; other professions follow method-source workflow needs, not exact query measurements. Exact monthly volume is unmeasured. Checked October 8, 2026.