Update Key
The update key function will allow you to change the customer code to an new one and will update historical data with the new code. There is also the ability to update the customer's last and first names.
Customer Code: This is the code used to search and identify your customer. This code is also know as the account number and is typically the phone number of the customer.
Update Last Name: Updating the last name will change the customer record but also any corresponding invoices.
Update First Name: Updating the first name will update both the customer record and invoices that are using this new code.