convert candidate into pending worker using hdl

Summary:

We need to covert external candidates into Pending Workers using HDL.

Do we need to include Worker and PersonName metadata?

Loading without these giving error saying "The person doesn't exist on the work relationship start date."

If Worker and PersonName is included it says "A record with this combination of values already exists."

Content (please ensure you mask any confidential information):

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

24C

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