This article tells you how to add a new contact to the existing customer. You might need to deal with multiple person in your customers' organization. On sales order and invoices, you can choose the contact the invoice or order is related to so the right person will receive the sales order or invoices when sent.
1. To add a new contact person to your customer you need to be on the Edit Customer page.
2. Click on the Contacts tab and click on the Add New Contact button
3. A form will appear and you can enter the information of the contact
4. Fill out all the needed information.
You can also delete the contact if it is no longer needed.