Can you not send an invoice internationally with online payments switched on ,from the uk to the usa ? I am on the essential plan and multicurrency switched on ?

As I know QB Payment doesn’t support international payments. You need to use a 3rd party app to sync with it.

You can send invoices to the USA with online payments enabled simply by issuing them as usual. Just advise your customer to convert the payment from USD to GBP, as these transactions can only be accepted in your home currency.
 

Additionally, you can view this helpful article regarding international payments using GoCardless: Accept international payments with GoCardless in QuickBooks.
 

If you have further questions, feel free to reach out. We’re always here to help.