topic Re: Cannot view custom events on Flutter in Real User Monitoring

Cannot view custom events on Flutter

smamani — Thu, 16 Apr 2026 06:44:31 GMT

I'am trying to send a custom event according to this documentation. This is my Flutter code to send the event:

Dynatrace().sendEvent( EventData( eventProperties: {'event_properties.comment': review.value}, ), );

I've already define the event properties "comment" in the Dynatrace web UI.

And this is the log from mi Flutter console:

[2026-04-15 11:12:58][DYNATRACE][INFO][EventProcessor]: Reporting event: {"characteristics.is_api_reported":true,"event_properties.comment":"this is a test","duration":0,"start_time":1776262378974,"flutter.version":"3.35.2","dt.rum.event.source.type":"flutter","characteristics.has_event_properties":true}

However, when I run my app and send the event, I don't see anything in the dashboard. "No events" is what I see.

I'm working with dynatrace_flutter_plugin v3.333.1.

Re: Cannot view custom events on Flutter

Thomas_Wirth1 — Wed, 15 Apr 2026 14:51:18 GMT

Hey smamani,

The linked UI shows "events" from the root cause analysis like a Mobile app slowdown. It does not show data reported by OneAgent.

The sendEvent API is part of the New RUM Experience and this monitoring data will not be visible in the RUM Classic screens. You can see the event in the "Users & Sessions" app (you have to enable the "Property" category). And you can also query the event via DQL (in the Notebook app or as part of your dashboard).

Re: Cannot view custom events on Flutter

smamani — Wed, 15 Apr 2026 15:08:29 GMT

Hi Thomas,

First of all, thank you for your quick response. I tried what you suggested, and now I can see the events!

Just one more question: is it possible to filter for this event across ALL sessions in my app from "User & Sessions"? I need a list of all events of this type.

Re: Cannot view custom events on Flutter

Thomas_Wirth1 — Wed, 15 Apr 2026 15:20:32 GMT

You can use DQL in the "Notebooks" app. For example:

fetch user.events | filter exists(event_properties.comment)

This query will return the event for all sessions in the given time frame. You can fine-tune it based on your use case.