When are assignment rules triggered in HR services?

Assignment rules in HR services are crucial for ensuring that cases are directed to the right personnel or group for resolution. They are triggered when there is a lack of a clear pathway for assignment, such as when an HR service does not have an established template, or the existing template does not specify an assignment group. This scenario necessitates the use of assignment rules to ensure that cases are handled appropriately, providing a systematic approach to managing HR inquiries and cases.

In cases where a clear template exists, or when templates are set up correctly to include assignment groups, the system will typically know where to route the case without needing to engage assignment rules. Thus, the circumstance described in the correct answer is specifically designed to address situations that lack clarity, ensuring that no case is left unattended or misdirected.