Unable to Post Pending Worker via API due to false duplicate check

Summary

RESTful API Create Employee fails due to duplicate

Content

When attempting to post a pending worker employee via API Restful Services POST call (create employee), we receive the following response.

{
  "title": "Bad Request",
  "status": "400",
  "o:errorDetails": [
    {
      "detail": "You cannot create this employee because the national ID and the combination of last name, date of birth, and first character of first name must be unique. (PER-1531814)",
      "o:errorCode": "PER:::PER_REST_DUPL_EMP"
    }
  ]
}

The issue is the the national ID is unique in our system, as are the combination of last name, date of birth, and first character of first name.