Make Supplier Contacts Optional During Internal Registration

Summary:

In Classic UI (not Redwood), we need to make Supplier Contacts as optional. Currently it's mandatory and cannot be made optional using Setup or using sandbox.

Content (please ensure you mask any confidential information):

In Classic UI (not Redwood), we need to make Supplier Contacts as optional. Currently it's mandatory and cannot be made optional using Setup or using sandbox.

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

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