Good day, @jonathan42.
Currently, the option to add a supplier as a customer in QuickBooks Online is unavailable. As a work around, you'll need to enter a special character or symbol to one of the names so that you can save it without any error.
To add a customer:
- Go to Sales on the left menu, then click the Customers tab.
- Click New customer on the upper-right corner.
- Type the name, address and other necessary information.
- Hit Save
To add a vendor/supplier:
- Click Expenses on the left menu.
- Go to the Vendors tab.
- Click New vendor on the upper-right corner.
- Type the name, address and other necessary information. (Make sure to add a character or symbol if you're adding the name as our customer).
- Hit Save.
You can use this article for more information about the process: Error: The name supplied already exists. Another customer, vendor, or employee is already using this...
To learn more about merging supplier/customer accounts and the list of accepted characters in QBO, please visit these articles below:
If you have other questions, feel free to reach out to us anytime. We're always here to help. Have a good day!
