Autocomplete rule on Worker Assignment

Summary:

We are looking for auto complete rule to validate if person already has active relationship and want to provide a message on the same. So basically , we need warning in UI if already one relationship is active and if HR tries to add another relationship to same person

Content (required):

We are looking for auto complete rule to validate if person already has active relationship and want to provide a message on the same. So basically , we need warning in UI if already one relationship is active and if HR tries to add another relationship to same person

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