Get alert for hiring manager when a duplicate job requisition is created using same position

Summary:

So the requirement is to get an alert message for the hiring manager if they are creating a duplicate job requisition using position.

If there is an existing job requisition from the same position, the hiring manager should get a warning that there is already another job requisition from the this position

Content (please ensure you mask any confidential information):

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

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