I am not able to generate an email notification for HR in the alerts composer for the journey

Summary:

I created an absence based event journey when an absence submitted. Journey email notification is getting generated. But need to send reminder to completed task notification to HR as well, and facing issues. I am not able to generate a email notification for HR in the alerts composer for the journey reminder alert. I used all the possible combinations in the Add Email Recipient such as ${AlertUtils.hrRep(AssignmentId).WorkEmail}

Content (please ensure you mask any confidential information):

I created an absence based event journey when an absence submitted. Journey email notification is getting generated. But need to send reminder to completed task notification to HR as well, and facing issues. I am not able to generate an email notification for HR in the alerts composer for the journey reminder alert. I used all the possible combinations in the Add Email Recipient such as ${AlertUtils.hrRep(AssignmentId).WorkEmail}