When should we use optimized funnel reentry mode and when shouldnt we?

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Based on the knowledge sources, I can explain when to use optimized funnel reentry mode and when not to.

You should use optimized funnel reentry mode when you want to maximize the capture of potential conversions by evaluating all funnel entry attempts, even if a user's previous funnel attempt is still in progress. This is particularly useful when: - You want to identify the highest possible conversion rate by considering all potential conversion paths - You're analyzing user behavior where users might make multiple attempts to complete a funnel within a short timeframe - You want to understand the effectiveness of repeated entry points into your conversion flowAs explained in the documentation, with optimized reentry mode, "if any user funnel entries within the report date range result in a conversion, we count the user as converted." This means you'll get a more optimistic view of your conversion rates.

You should stick with the default mode (not using optimized reentry) when: - You want to analyze only the first funnel entry attempt for each user - You're specifically interested in understanding the success rate of initial conversion attempts - You want a more conservative measure of your funnel performance - You're analyzing a funnel where subsequent entries might artificially inflate your conversion metricsIn the default mode, if a user's first funnel entry doesn't convert within its window, they're counted as not converted, even if later attempts succeed.

The documentation provides clear examples of how the two modes differ: In a scenario where a user performs events A → A' → B (where A' happens while the conversion window for A is still active): - Default Mode: Only evaluates the first funnel entry (A), which did not convert to B in time - Optimized Reentry Mode: Treats A' as a new funnel entry and counts the A' → B path as a conversionThis difference can significantly impact your reported conversion rates and how you interpret user behavior in your product.Funnels Advanced Concepts provides more detailed examples and technical considerations for both modes.

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