Number of Issues Unassigned for 30+ Days
Step 1: In the Data Source, filter open issues by selecting statuses that signify unresolved issues.
Step 2: Switch from the Basic metric to the Conditional metric and select the 'Time in Assignee' metric. Under Users, specify 'Unassigned' and input the conditional expression: if(P>30,1,0)
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Step 3: For the 'Display by' option, select the 'Priority' field.