How do filters work on reports showing historical data?
In InsightSquared, filters will always be based on the current value in a given field. So, if you are filtering a report like Pipeline History to exclude Stage 1, the report will remove all opportunities currently in Stage 1. However, previous months may still have a value in that column, since opportunities that were in that stage may now still be open and further down the funnel (thus not being excluded from the report).
For any additional clarification, please feel free to reach out to firstname.lastname@example.org.