Netting Off (I think)

[QFSteve]

Hello Rory

You would manually contra the invoices off

To do this you would set up a dummy bank account (in this case GBP because of the different currencies)
You would record a payment for both invoices on this account

I found another forum posting on this you may find useful

Contra-Invoicing, Same Customer and Supplier, Netting-off receivables and payables

Do you have a recommended method for ‘netting-off’ customers who have made supplies i.e. transfer the balance on an unpaid purchase invoice to the Customers account and apply against outstanding invoices. Do not want to use a credit notes because that would understate values in the P&L.