How to verify particular instance id details in camunda community version cockpit. if we know the instance ID. (I am unable to find any search option in cockpit).
What is the instances count we can see for a process in cockpit with community version.
search in Cockpit is enterprise only feature: Dashboard | docs.camunda.org
As for the details, it depends on what you exactly want to see. One of the options that you could use if you only have the instance id is to use get endpoint Get Instance | docs.camunda.org and then navigate to the process definition in the cockpit and use search by businessKey.
If you have multiple running versions, you can use Get Decision Definition | docs.camunda.org with the definitionId from the previous response to determine in which Cockpit version you should look.
Hope that helps.