Instrument a staging app with Countly and trigger a fixed set of sessions and events. Compare expected and recorded counts, check device and time-zone handling, and inspect the data sent from the client for unnecessary identifiers.
Dashboards cannot repair inconsistent event definitions. Agree on names, ownership, consent, and retention before broad deployment. Test export and deletion paths if they matter for your users. A good analytics system answers defined questions with data the team can justify collecting.
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