This one company is both a vendor and a customer. But QuickBooks won’t allow me to make them a Vendor as they are already set up as a Customer.
In some software program, you can do it but it’s not possible in QBO. You will need to create two separate names. As a workaround, you will need to do the following:
For Vendor – put V next to vendor name (XYZ V)
For Customer – put C next to customer name (XYZ C)
This way at least you know which one to use.