View - Settings - Accounting - Module Settings - Currency
All journals entered in a foreign currency are converted to GBP, or the default currency that you have entered for your company database. The currency register is updated manually, and you receive a warning after a given number of days telling you to update currencies.
No. of days before reminder of expired exchange rate specifies how many days an exchange rate shall be valid for.
The default setting is that all double entry N/Cs are entered in GBP, or the default currency that you have entered for your company database. If you choose to Copy currency code to Double Entry N/C, all journal lines in the journal will be entered in the same currency.
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