How to configure ICP approval so that requestor cannot approve their own Personal Contribution ICP

Summary: How to configure ICP approval so that requestor cannot approve their own Personal Contribution ICP

Content (required): Hi All,

         We have a requirement as follows

There is an ICP plan which goes for approval to an application Role.

Now this application Role is assigned to many users and when ever an employee raises an Personal Contribution ICP then the approval goes to all the users who have the Application Role.

Now the issue is, the employee who raises this personal contribution ICP has the application role.. So the employee can approve their own ICP transaction.

How do we restrict this behavior?