You can create a custom chart for "4XX" Errors with details.
For API, you can extract the same using timeseries API "com.dynatrace.builtin:service.errorcounthttp4xx"
If I wasn't to count all errors with timeseries API: "com.dynatrace.builtin:service.errorcounthttp4xx", I want the possibility to extract/export all 4xx and 5xx errors with detailed exceptions text and then elaborate a personalized report with the detailed exception text who more appear in the last two hours by example.
can I export all this from dynatrace API?
In dynatrace Managed or SaaS, it call: Reasons for failed requests (exceptions)
Example: com.xxx.demo.starter.go.exception.CoreException / Error Code:***** Operation Code:***** Transaction Id: WW16