For one of my customers we are instrumenting RUM frontends in agentless mode (no OneAgent installed).
I'd like to use the key performance metric "LCP" to calculate my Apdex.
However, I'm having problems because most of my UserActions return a NULL value for this metric.
As a result, I'm using the fallback metric, which is User Duration.
This is a problem because this metric does not represent the indicator we want to track for the Apdex (and the durations are not the same at all).
Do you know what can cause this NULL value when web pages are loaded correctly in the right time?
Dynatrace Partner - Professional Certified - DynaMight
