Use Five Whys on a Bad Lifecycle Stage
Apply Five Whys to move from a reverse-ETL symptom to a durable process fix.
3,900 HubSpot contacts were moved from Customer to Lead by an overnight lifecycle-stage sync. Five Whys: symptom -> cause chain -> fixable process countermeasure Stopping at "bad SQL" creates a patch, not a prevention system. Before Patch the CASE statement, rerun the sync, and tell Marketing the issue is fixed. After Fix the definition source, add a pre-write transition diff, and require business-owner approval for lifecycle logic changes. Why 1 Why did contacts move from Customer to Lead? The reverse-ETL model recalculated lifecycle_stage using closed_won_date only. This explains the symptom, but it is still inside the SQL. Why 2 Why…
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