When encountering an unexpected spike in the new_dau
metric without a corresponding increase in website traffic, there are several potential causes to consider. Firstly, it is important to verify the accuracy and consistency of event logging. Any discrepancies in how events are logged can lead to anomalies in the metrics.
Secondly, if data is being imported from external sources, ensure that the ingestion process is functioning correctly and that data is imported in a timely manner.
Additionally, be aware of timezone differences that may affect the interpretation of metrics; Statsig uses Pacific Standard Time (PST) as its default, which could lead to discrepancies if other systems are set to different timezones.
Lastly, the use of user identifiers should be consistent across all events and sessions to maintain the integrity of the data.
If these checks do not resolve the issue, further investigation into specific events that correlate with the metric increase may be necessary. It is also advisable to reach out directly for support if the cause of the spike remains unclear.