Why is Mixpanel not showing all my signup events?

Mixpanel usually “misses” signup events for one of a few reasons. The most common causes are:

1. The event isn’t actually being sent

   • The signup flow may succeed, but the tracking call never fires.
   • Check for errors in the browser/app console or network requests.

2. The event fires before Mixpanel is initialized

   • If track("Signup") runs before mixpanel.init(...), the event can be lost.

3. The page/app closes or redirects too quickly

   • On signup, a fast redirect or page unload can interrupt the request before it reaches Mixpanel.
   • Use batching/flush or ensure tracking happens before navigation.

4. Ad blockers or privacy tools

   • Some browsers/extensions block analytics requests.
   • This can make events disappear for certain users.

5. Incorrect event name or project token

   • You may be looking at the wrong Mixpanel project, or using inconsistent event names like signup, Sign Up, and Signup.

6. Sampled / filtered data views

   • In Mixpanel, you might be looking at a report with filters, date ranges, or breakdowns that exclude some events.
   • Verify in Live View and remove filters.

7. Server-side events failing

   • If signups are tracked from your backend, requests may fail due to auth, payload issues, or retries not being handled.

8. Duplicate suppression or identity issues

   • If you use identify, alias, or merge, events may appear under different distinct IDs or not be linked the way you expect.

9. Timezone or date-range mismatch

   • Events may exist, but not in the time window you’re viewing.

Quick checks

• Open Mixpanel Live View and perform a test signup.
• Confirm the event name exactly matches what you expect.
• Inspect the network request to Mixpanel.
• Test with extensions disabled / incognito.
• Make sure the event is tracked before any redirect.
• Verify you’re in the correct project and date range.

If you want, I can help you debug it step by step if you share:

• your tracking code,
• whether it’s frontend or backend tracking,
• and whether the missing events happen in all browsers or only some users.