Between June 6th 21:00 UTC and June 7th 17:00 UTC up to half of all revenue data sent client-side to Amplitude was duplicated.
On June 6th, we began an infrastructure upgrade on our revenue verification system and introduced an error into the configuration. On June 7th 17:00 UTC our engineering team identified and stopped the duplication. No data was lost during this incident.
There was a misconfiguration during the infrastructure upgrade.
Our engineering team is currently working on a fix to correct the duplicate events and has implemented to measures to prevent this misconfiguration issue from occurring again. Our initial estimate is that a fix will take at least 2 weeks to deploy.
We sincerely apologize for any inconvenience this has caused. Thanks for your understanding and support.
As of Monday June 12, our engineering team has deployed a fix to correct the duplicate events.