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Add app start measurements naming note #6368

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Mar 6, 2023
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Add app start measurements naming note #6368

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Add app start measurements naming note
krystofwoldrich Feb 27, 2023
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Update src/platforms/react-native/performance/instrumentation/automat…
krystofwoldrich Mar 6, 2023
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8 changes: 7 additions & 1 deletion ...latforms/react-native/performance/instrumentation/automatic-instrumentation.mdx
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Expand Up @@ -292,7 +292,13 @@ If you don't [wrap your root component with Sentry](#wrap-your-root-component),

</Note>

The SDK differentiates between a cold and a warm start, but doesn't track hot starts/resumes.
The SDK differentiates between a cold and a warm start, but doesn't track hot starts or resumes. The measurements are available under `measurements.app_start_warm` and `measurements.app_start_cold`.

<Note>

For SDKs from version `4.4.0` to `5.0.0` the app start measurements are available under `measurements.app.start.warm` and `measurements.app.start.cold` as custom measurements.

</Note>

Cold and warm start are Mobile Vitals, which you can learn about in the [full documentation](/product/performance/mobile-vitals).

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