Employee replacement during absence

Summary

Employee temporary reassignment to the absent employee

Content

Dear Community,

I have a case where I need to reassign an employee in place of the one being absent through a WF approval.

Employee A has applied for leave through absence management. For the approval to proceed, a replacement must be nominated. 

Employee B will be in place of the absent employee during the absence period.

Currently its being done as a separate process where after employee A gets approved, a manual process gets done to reassign a temporary employee B in his/her place. Is there a way to automate this as it causes havoc due to the manual reassignment?