Validating job code per job family

Summary:

When we create a requisition, the job family comes first under the structure (and can't be changed) and then the job code in the offer section. We are having data issues where they don't line up.

Has anyone put in a business rule to link the job codes to the job family? Or other rules to help with the recruiter selecting the correct job and job family?

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