delegation/transfer rule

Summary:

How can we auto assign rule to backup position if some one goes on vacation

Content (required):

We have a requirement in which we have to defined the position back for each position. so whenever employee will go on leave then backup position employee will get all notification/perform action accordingly.

is there any way to achieve this.

Thanks.

Version (include the version you are using, if applicable):

22B

Code Snippet (add any code snippets that support your topic, if applicable):