I have implemented Session Replay in Mixpanel. I can see events like session_start and session_end in Mixpanel, but I'm unable to view the replays. When I click on "View Replays", it shows the message: "No session replays received yet". Why is this happening, and how can I resolve it?
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If you have implemented Session Replay in Mixpanel and see events like session_start and session_end, but are unable to view replays (seeing "No session replays received yet"), there are a few common reasons and troubleshooting steps: 1. Session Replay May Not Be Enabled or Sample Rate Is Too Low
- By default, Session Replay is disabled and must be explicitly enabled in your SDK initialization. Make sure you have set the record_sessions_percent option to a value greater than 0 (e.g., 1 for 1% of sessions) when initializing the SDK. If the sample rate is too low, you may not capture enough sessions to see replays.
- Example for JavaScript:
record_sessions_percent: 1 // records 1% of all sessions
});
```LBKS - Start with a low sampling rate, but you can increase it to verify implementation and see replays appear more quickly.
[Implement Session Replay (Web)](https://docs.mixpanel.com/docs/session-replay/implement-session-replay/session-replay-web)LBKS2. **Manual Capture Not Triggered (if using manual mode)**
- If you are using manual capture, ensure you are calling `start_session_recording()` at the appropriate time in your app.
- Example:
```LBKS mixpanel.start_session_recording();
```LBKS [Implement Session Replay (Web)](https://docs.mixpanel.com/docs/session-replay/implement-session-replay/session-replay-web)LBKS3. **Check for the `$mp_session_record` Event**
- When a replay capture begins, a “Session Recording Checkpoint” event (`$mp_session_record`) should appear in your project. This event confirms that Session Replay is being recorded. If you do not see this event, Session Replay is likely not enabled or not configured correctly.
[Debugging - Web](https://docs.mixpanel.com/docs/session-replay/implement-session-replay/session-replay-web#debugging)LBKS4. **Replays Take ~1 Minute to Appear**
- Replays are available for viewing in Mixpanel about 1 minute after the recording is captured. If you just triggered a session, wait a minute and refresh.
[Session Replay FAQ](https://docs.mixpanel.com/docs/session-replay#faq)LBKS5. **Plan Limitations or Old Plan**
- If your organization is on an older Mixpanel plan, Session Replay may not be available. You need to be on the latest Free, Growth, or Enterprise plan.
[Session Replay: Plan Availability](https://docs.mixpanel.com/docs/session-replay)LBKS6. **Check the Home Page for Latest Replays**
- You can also check the “Latest Replays” card on your project’s Home page to see if any replays have been captured.
[Debugging - Web](https://docs.mixpanel.com/docs/session-replay/implement-session-replay/session-replay-web#debugging)LBKS**If you have confirmed all the above and still do not see replays:**
- Try increasing your sampling rate temporarily to 100% to ensure sessions are being captured.
- Manually trigger a session recording and check for the $mp_session_record event.
- If the event appears but you still cannot see replays, there may be a configuration issue or a problem with your implementation. In this case, you can submit a request to Mixpanel Support for further assistance.Summary:
The most common reasons for not seeing replays are: Session Replay not enabled, sampling rate too low, manual capture not triggered, or being on an unsupported plan. Use the $mp_session_record event as a checkpoint to verify correct implementation.
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