How to send 'FYI' Notification to Employee when an Absence is Booked By Line Manager or HR Admin ?

Summary

How to send 'FYI' Notification to Employee when an Absence is Booked By Line Manager or HR Admin ?

Content

Hi Experts,

We have a particular type of Absence defined in the system where the leaves are booked by Line Manager / HR Admin on behalf on employee.

We however are trying to send an FYI Notification to employee for whom the absence is booked once the absence booking is done.

Wondering if we can achieve this using BPM and if yes which expression should be used.

Have anyone of you tried this. (Can we use AbsenceAssignment.assignmentId or some combination in Expression Builder)