Person added to Study Personnel listing, via Add model, was entered incorrectly (first name, last name, email). When analyst accessing study personnel, deletes record and adds again, the information will still be incorrect.
When adding an individual to the Study Personnel who is not listed as an option in the drop down, the Add feature is present. Adding the individual requires that you complete all fields in the model. If information is entered incorrectly, this will cause problems, especially when the email is entered correctly, but first or last name are entered incorrectly.