What condition do you use on the Elements Filter record for the 'Groups' Breakdown Source to get only groups that had an incident assigned to them?

To focus on retrieving only groups that have had an incident assigned to them, adding 'Incident>Assignment Group' to the related list conditions is crucial. This condition ensures that the filter specifically looks for the assignment of incidents to various groups. By directly linking the filter to the Incident table and specifying the Assignment Group, it creates a direct relationship that validates and narrows down the results to only those groups meeting the required criteria.

This method is effective because it leverages the relational nature of the ServiceNow data model, where incidents are directly related to groups through assignment. By filtering based on that specific relation, you can ensure that any groups returned in the breakdown have indeed been involved with incidents, thus providing accurate analytics data that reflects the assignment status.

Other options might involve roles or types which do not directly relate to filtering based on actual records of assignments between incidents and groups. Hence, focusing on the specific relationship between Incident records and Assignment Groups is the most efficient way to obtain the desired information.