I created invoice and customer said it is showing as already paid. i checked transaction and it is using the same reference number in paypal as a previous transaction. ?

Thanks for visiting in the Community, mervynethelston,

Let me get the help you need in sending an invoice to your customers.

To further isolate the issue, upon sending the invoice, kindly check if the invoice sent is the newly created.

You can use the Audit Log to verify and trace the invoice. Here's how:

1. Click the Magnifying Glass at the top.
2. Click the Advanced Search link.
3. Filter the transaction to Invoices, then set specific customer.
4. Click Search.
5. Locate and open the Invoice.
6. Check the PAYMENT STATUS if it is PAID or not.

If the Invoice sent was the PAID one, then that is the reason it is showing as paid on the customer’s side.

However, if the Invoice sent was not the PAID one and it is showing as PAID on the customer's side, please get back to us and provide some screenshots for me to further check.

I'd appreciate if you can update me on how it goes. I'm always here to help. Have a great day!