How to prohibit self-approval by the creator of the contract

Summary:

I want to skip assigning contract approval to the author of the contract.

Content (required):

To prevent self-approval by the author of the contract, we referenced Doc ID 2678393.1 and registered an expression that prohibits the author's self-approval against the contractsapproval (*see image).

But the creator of the contract can still approve the contract.

In order to resolve this issue, please let us know how to set up an expression that prevents self-approval by the author of the contract.

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

Project Management 23B.

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