How to monitor users who complete a key action after sign-up ?

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To monitor users who complete a key action after sign-up in Mixpanel, you can use a combination of event tracking and retention analysis. Here's how you can approach this: 1. Track Sign Up and Key Action Events: First, ensure you're tracking both the "Sign Up" event and the key action event you want to monitor. For example, if your key action is sending a message, you might have events like "Sign Up" and "Send Message".2. Use Retention Analysis: Mixpanel's Retention report is ideal for monitoring users who complete a key action after sign-up. As described in the Mixpanel blog: "To compare the difference in retention rate among users who perform a specific product action (such as "Invite team") and those who don't, we defined and saved two cohorts in Mixpanel. We then went into the Retention report and selected "Send Message" as our event A and B, so we can track how many people come back to perform a meaningful event over time."3. View Users: After setting up your Retention report, you can use the View Users feature to dive deeper into the specific users who completed (or didn't complete) the key action after sign-up.According to the Mixpanel documentation: "View Users in Retention report presents you with two options - view retained users and view dropped-off users. This is helpful to find the specific group of users who were engaged or dropped off after Sign Up over a period of time."4. Create Cohorts: Based on your analysis, you can create cohorts of users who completed the key action after sign-up. This allows you to further analyze their behavior or target them with specific messaging.5. Set Up Alerts: To actively monitor this metric, you can set up alerts in Mixpanel. As mentioned in the Mixpanel documentation: "Once you've created a report for a key metric you want to track for instance, you can create an alert to monitor how they perform, either by setting explicit thresholds, or setting up automatic anomaly detections."By following these steps, you can effectively monitor and analyze users who complete a key action after sign-up, helping you understand user behavior and improve your product's activation and retention rates.

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