Is it possible to create an invoice to charge a supplier

Hi, richard75.

You'll have to add a character or middle name for this supplier since QuickBooks doesn't allow two identical names at the same time.

Here's how: 

1. Click Sales on the left pane.
2. Select Customers.
3. Click New customer.
4. Enter the name of the customer. Make sure it's not identical to their supplier name.
5. Enter needed information, then click Save.

I have included these help articles for your future reference. Manage Customers And income.

You can always get back to us if you need further assistance. We're always here to help.