If you already monitor your Flutter frontends with RUM Classic, upgrading to RUM requires only a configuration change. You can enable RUM for an individual mobile frontend or for all mobile frontends at the environment level.
Before enabling RUM, make sure the following conditions are met.
traceparent and tracestate, which are required for frontend-backend linking, don't pass through; see Upgrade from RUM Classic to RUM.Go to
Experience Vitals > Overview.
Select Mobile to view all mobile frontends.
Select the frontend you want to configure.
Switch to the Settings tab.
Under Enablement and cost control, turn on RUM.
To enable RUM for mobile frontends at the environment level:
The Settings API allows you to enable RUM either for a mobile frontend or at the environment level. For details, see Settings API - Enablement and cost control schema table.