I am getting different results when I'm using filters in the filter section as opposed to using filters in the Metrics Section. I already have a first time ever filter selected in the Metrics Section. Why the discrepancy?
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The discrepancy you’re seeing between using filters in the filter section (global filters) and filters in the Metrics section (inline or event-level filters) is due to how and when these filters are applied in Mixpanel’s query logic.Key points:Why the discrepancy? If you have a "First Time Ever" filter in the Metrics section and then apply an additional filter in the global filter section, the order and scope of filtering can lead to different results. For example, the "First Time Ever" filter may select a different set of events than what the global filter would include or exclude after the metric is calculated. This is especially true if your filters are based on properties that may or may not be present on the first event for each user.Best Practice: To avoid confusion, try to keep your filtering logic consistent—preferably apply all relevant filters at the metric/event level when working with "First Time Ever" or similar filters, so you’re always working with the intended event set.For more details, see: - Analyzing First Time Users - Filters in Reports - Query Builder FeaturesIf you need to debug further, try removing all filters and re-adding them one by one to see where the discrepancy arises Debugging Discrepancies.
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Best Practice: To avoid confusion, try to keep your filtering logic consistent—preferably apply all relevant filters at the metric/event level when working with "First Time Ever" or similar filters, so you’re always working with the intended event set. Why should I do this?