How to restrict Ship to and Bill to Customer to Related

Summary:

Has anyone been able to code/restrict the customer site list of values at order entry to only allow user to only chose related sites.

Content (please ensure you mask any confidential information):

With a global business units users can chose in error incorrect site during order entry.

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

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

Doc ID 2203031.1