The name supplied already exists. Another customer, vendor or employee is already using this name. Please use a different name.


Many customers place test orders with existing employees or vendors in QuickBooks. QuickBooks only allows new customers, if they do not match employees or vendors. You must rename the vendor or activate the customer.

Error Message

Here is the full error:

"Error adding customer Nieto, Brenda. Ensure that the customer does not already exist in QuickBooks under the billing email, name, or as an inactive customer. Ensure the customer has a valid phone number. The system will associate the order with web store."

Customers, employees, and vendors exist in the same QuickBooks database table. Two rows cannot have the same name.

How do I resolve this issue?

You can change the vendor name in QuickBooks or change the billing address last name on your website. If the customer is a vendor, here are the steps to change the display name:


  1. In QuickBooks, click vendors.
  2. Find the vendor.
  3. Double-click the record.
  4. Change the display name, such as adding an asterisk.
  5. Click save.

The billing address last name varies depending on your store. Go to the Orders tab. Find the missing order. Edit the billing address. Add a two at the end of the last name.

Update Orders

Once you have fixed these issues, you can rerun the orders and change the customer record.

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