I have a dashboard on Dynatrace SaaS with key services request (count) metric and I want to create a problem notification of it with a specific threshold, for example alerting for above 40 request. I found the configuration of "service request" in "Settings/Anomaly detection/Custom alerts" but inside of service I've some key services and I don't want to notification of these, only one specific key services. Is possible the configuration?
Try going to Transaction and Services -> Select your desired service -> Edit -> Anomaly Detection and scroll down to see the key requests there. You can set custom thresholds for each one of them separately.
Take a look at the screenshot below as an example, and let me know:
If doesn't appear to you, please check your Dynatrace Version.