In Accounting you can transfer money between two bank accounts if they're using the same currency. But you can't transfer money between two different foreign currency accounts.

To do this you can journal the transfer instead.

 CAUTION: We recommend seeking your accountants advice before processing any workaround.  

Journal the transfer

1. Go to Adjustments, then select Journals.
2. To create a new journal, select New Journal.
3. Enter the date and a suitable Reference and Description. This helps you find and identify the journal later. Complete the following information:
   

   Details	If required, enter details for the journal.
   Ledger Accounts *	Select the nominal ledger accounts for your foreign currency bank accounts.
   Include on VAT Return?	Select if this transaction is VATable.
   Debit	Enter a debit value for the bank account the money is being transferred from in GBP (£). The value of the foreign currency will appear below the figure.
   Credit	Enter a debit value for the bank account the money is being transferred to in GBP (£). The value of the foreign currency will appear below the figure.
   Exchange	Enter the exchange rate for both lines of the journal. It's recommended to put the exchange rate on the day of the transfer, between the foreign currency and GBP (£).

4. Check the total value of credits and debits are the same, then select Save.