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).

Open

Step 3: For the 'Display by' option, select the 'Priority' field.