Implement funnels and retention correctly in Mixpanel
domain: mixpanel.com · 4 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Send events with distinct_id; use $identify/simplified ID merge to link anon → known
Set super properties sparingly; user profile via people.set
Import history via /import endpoint with time in SECONDS and project token + api secret
Build funnels on event sequence within a conversion window
Known gotchas
/import requires events older than 5 days to use the import API (not /track which silently drops >5-day-old events)
time must be unix SECONDS (ms timestamps put events in year 50000+ and they vanish from reports)
ID merge has per-cluster limits (e.g. 500 ids) — bot traffic merging explodes clusters and corrupts counts
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