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To report on data from different breakdowns, it is sometimes necessary to add multiple connections to the same source in Funnel. If the connections include the same metrics, there is a risk of data duplication since Funnel automatically aggregates data for all sources.
To prevent unintentional data duplication, we have added a warning to the Data Explorer when there is a risk metrics are multiplied. The warning will inform you which metrics and sources might be affected, to enable you to take action and filter the data as needed.
Product Guide: How to work around duplicated data in Funnel?
How to create a data model to deduplicate data and avoid double-counting