Hello kapa.ai. Some of our app registered users are not showing up in mixpanel (not even after a delay). I haven't found any patterns, or data points, that explains why most users are in mixpanel but some are not.
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There are several reasons why some of your registered users might not be showing up in Mixpanel. Based on the knowledge sources, here are the most common causes and troubleshooting steps:
Ad Blockers and Do Not Track Settings
Client-side tracking can be unreliable, potentially causing you to lose events for 30-50% of your users. Users with ad blockers or Do Not Track (DNT) browser settings enabled won't send data to Mixpanel.Solution: Consider sending events through a proxy or implementing server-side tracking, which is more reliable and easier to maintain than web/mobile tracking.
Hidden Events and Properties
Events might be hidden in Lexicon by Project Owner and Admin users. Additionally, Mixpanel's report dropdown menus hide events that haven't been fired within the last 30 days.Solution: Check Lexicon to see if relevant events are hidden, and verify if the events you're looking for are inactive.
Data Residency Configuration
If your project has EU or India data residency but your SDK is configured with the wrong API host, events will be rejected.Solution: Ensure you're using the correct API host that matches your project's data residency:
- US: [api.mixpanel.com](http://api.mixpanel.com) (default)
- EU: [api-eu.mixpanel.com](http://api-eu.mixpanel.com)
- India: [api-in.mixpanel.com](http://api-in.mixpanel.com)This is especially important for India data residency, where events will be rejected if sent to the wrong endpoint.
Debugging Steps
1. Enable Debug Mode in your SDK to confirm requests are being sent to Mixpanel:
- JavaScript Debug Mode
- iOS Debugging and Logging
- Android Debugging and Logging2. Check Browser Console (for web implementations):
- Enable debug mode on your website
- Open your browser's developer console (Network > Fetch/XHR tab)
- Perform actions that trigger Mixpanel tracking
- Look for requests to the Mixpanel API and check for error messages3. Verify Project Token:
- Ensure the "token" in the data payload matches the token in your Project Settings4. Check for Opt-Out Settings:
- Users might have been opted out of tracking using the opt_out_tracking() method
- If your SDK is configured with opt_out_tracking_by_default: true, users won't be tracked unless they explicitly opt inIf you're still unable to identify the pattern after these steps, I recommend implementing server-side tracking as a more reliable solution to compare with your current implementation and identify discrepancies.
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kapa.ai Is there another place then "Users" where I can see all users, or is there a log or somewhere else where I could see some errors why I a user wasn't registered. Which data is the minimum for a user to be registered (to have a registered distinct id).
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Based on the knowledge sources, here are the places where you can see users in Mixpanel and troubleshoot registration issues:
Viewing Users in Mixpanel
The primary place to view users is the Users page, which allows you to: - View all users who have completed any event (by selecting "All Users") - View users with profile properties (by selecting "User Profiles") - Explore individual user histories - Create cohorts based on user behavior or propertiesUsers: Explore your user base in Mixpanel explains that you can toggle between "User Profiles" and "All Users" views. The "All Users" view will show all users who have completed any event, even if they don't have profile properties set.
Troubleshooting Missing Users
For debugging why some users aren't being registered, you can use: 1. Events report - The Events report shows events and their properties as they flow into Mixpanel, which can help identify if user events are being tracked at all.2. User Profile Activity Feed - This report contains all information about specific users and is particularly useful for identity management issues: - You can examine the Identity Cluster to see all Distinct IDs linked to a user - Search through all events with the most recent one listed on top - This is the only report with query-time identity management mergingAs noted in Check Your Implementation, "The User Profile Activity Feed report is the only report with query-time identity management merging. All other reports in Mixpanel may still show separate Distinct IDs while merging is still being processed."3. Debug Mode - Enable Debug Mode in Mixpanel's Client-Side SDKs to log any Mixpanel calls to the browser console or development platforms.
Minimum Data for User Registration
For a user to be registered in Mixpanel, the minimum requirement is a distinct_id. This is the fundamental identifier Mixpanel uses to track unique users.For client-side implementations:
- Mixpanel automatically generates a $device_id for anonymous users
- When you call .identify(<user_id> ), Mixpanel creates an identity mapping between the $device_id and your $user_idFor server-side implementations:
- You need to manually manage the distinct_id
- It's recommended to set both $device_id and $user_id properties rather than setting distinct_id directlyIf you're using the Simplified ID Merge API, the distinct_id will be set to:
- The $device_id value if only $device_id is present
- The $user_id value if $user_id is presentIdentity merging can take up to 24 hours to propagate throughout the system, though the Activity Feed view updates in real-time (less than 1 minute delay).If you're still having issues, I recommend checking if your implementation correctly handles identity management according to the guidelines in Identifying Users (Simplified).
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kapa.ai How do I toggle between "User Profiles" and "All Users" views. The "All Users" view will show all users who have completed any event, even if they don't have profile properties set.
Let me check the knowledge base for you again. One moment! đ
Based on the knowledge sources, here's how to toggle between "User Profiles" and "All Users" views in Mixpanel: On the Users page in Mixpanel, you can select between "User Profiles" or "All Users" views. This toggle allows you to switch between seeing only users with profile properties set or all users who have completed any event.As described in the documentation: "You can select User Profiles or All Users in the Users page. If you select User Profiles, the page will only show users that have at least one user profile property set. If you select All Users, the page will show all users who have completed any event." Users: Explore your user base in MixpanelThe "All Users" view is particularly helpful when you want to see all users who have interacted with your product in any way, regardless of whether they have profile properties set. This can help you identify users who might be missing profile information but are still active in your application.Once you've selected your preferred view, you can further explore individual user histories by clicking on a user's name in the table, which will take you to their user profile with more detailed information about their activity.
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kapa.ai thanks, I think the Users > "Users" instead of "User with profiles" did the trick. I can see many more users now which I thought were missing.
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I'm glad to hear that switching to the "All Users" view in the Users page helped you find the users you thought were missing! This confirms what the documentation mentions - the "All Users" view shows everyone who has completed any event in your application, even if they don't have profile properties set.This is a common point of confusion for Mixpanel users. The "User Profiles" view only shows users who have at least one profile property set, which can make it seem like some users are missing when they're actually just lacking profile properties.Now that you can see these users, you might want to consider: 1. Setting up profile properties for these users to make them appear in both views 2. Using this complete user list to create cohorts for further analysis 3. Exploring individual user histories by clicking on specific usersIs there anything specific you'd like to know about working with these newly found users in Mixpanel?
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kapa.ai a follow-up question, when does a user become a "user with profile" vs "users", i.e. at what point is the profile created for a user.
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Based on the knowledge sources, I can explain when a user becomes a "user with profile" versus just a "user" in Mixpanel:
User Profiles vs. All Users
A user becomes a "user with profile" (appears in the "User Profiles" view) only when at least one profile property has been set for that user. Until then, they'll only appear in the "All Users" view if they've completed any event.
Creating User Profiles
User profiles are not created automatically. They require explicit profile property setting through one of these methods: 1. Using SDK methods: You must call both .identify() and a profile property setting method like .people.set() or .getPeople().set() For example, in JavaScript: LBKS// You must call identify to associate the profile update with the user mixpanel.identify('12345'); mixpanel.people.set({ plan: 'Premium' });LBKSAs noted in the documentation: "The people.set() method is the required call to set user properties on a user profile. However, the people.set() call also requires an identify() call at some point in the same session, so that Mixpanel knows which User ID to associate the profile properties to." Identity Management Best Practices2. Via API: Using the HTTP Engage API to set profile properties3. Importing profiles: Through the UI by uploading CSVs or using Warehouse Connectors4. Integration partners: Through various integration partners that can create profilesIt's important to note that simply calling .identify() alone does not create a user profile. As the documentation states: "The mixpanel.identify() call does not create a User Profile in Mixpanel." You must explicitly set at least one profile property.If you call .people.set() without first calling .identify() in the same session, Mixpanel will store the profile properties locally until that user hits an identify() call.This explains why you were seeing users in the "All Users" view but not in the "User Profiles" view - they had generated events but didn't have any profile properties set.Would you like more information about how to set up user profiles for your existing users?
kapa.ai is still learning and improving, please let me know how I did by reacting below.
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kapa.ai, how long can it take for a new user to be registered (either in Users or Users with profile) ?
