How to restrict Business Unit in an approver override

Summary:

In Procurement cloud, we would like to restrict Business Unit at approver override function.

My customer is in trouble approval route.

So we want to know how to restrict Business Unit or other restrict function.

Content (required):

Restrict Business Unit at approver override function or other restrict function.

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

23C

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