I'm building a Dynatrace dashboard and I am confused about the built-in metrics related to errors.
According to the below Dynatrace documentation  on built-in metrics, Dynatrace offers the following error rates for use on a Dashboard:
The documentation is not specified about what these errors are about, therefore I am asking here in the Community forum for clarification.
Thank you for your support!
Best regards, Bernhard
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Could you please check this part of the documentation I think you will find the answers for your questions.
The referenced docs page referenced by @Mizső I believe does explain the difference of detected errors and how to configure them if they don't meet your need.
For example reading the explanation tells me that 500-5xx will always be interpreted as a server error. So 5xx metrics.rate is a server error while 400-4xx (yes there is a typo on that page) is a client error.
Then it also says that missing HTTP response code as client-side errors or server-side. So my naiv assumption is that 4xx is everything from 400-4xx while client side or then server-side (500-5xx), respectively can be more than just the actual 4xx or 5xx errors. E.g. when you also take missing response codes into account.
Id therefore say yes to
And yes to:
But maybe @tom_rothschaedl can cross-check this, pls.