CurrencyPeriodRates - mandatory fields
When creating or amending a currency code period rate or changing the currency code period rate status, the following must be supplied:
- 
                              			            
                              
Currency Code From - payload element
<CurrencyCodeFrom> - 
                              			            
                              
Currency Code To - payload element
<CurrencyCodeTo> 
When specifying a Currency Rate Type, you must enter an existing rate type code:
<RateType>
    <ShortHeading>.</ShortHeading>
  </RateType>
                        			If no rate type is specified, the currency period rate is used as the DEFAULT rate type.