PayPal ErrorCode: 10412] Payment has already been made for this InvoiceID
"[PayPal ErrorCode: 10412] Payment has already been made for this InvoiceID" Error when trying to pay open Sales Invoices on the webstore.
In the Paypal Account Set Up, Block Multiple Payments per invoice is enabled.
- Login to your Paypal Account.
- Go to My Account > Profile > My Selling Tools > Click Update on the right side of Block Payments > Block Accidental Payment > Select No, allow multiple payments per invoice ID > Save.
Connected Business 14 and higher