If the contact information you entered already exists, Receivables displays the Contact Duplicate Prevention page.
Existence of duplicate contact information
On the Contact Duplicate Prevention page, select either of the following options:
Use Existing Person.
Create Person.
When you make the selection, Receivables creates the contact and displays the Communications subtab of the Account Overview page to enable you to create additional contacts, and add and update contact details. See: Creating and Updating Contact Points.