Conditional (C2)
This field specifies the currency and amount of the charges due to the Sender for the individual transaction in this occurrence of sequence B.
Currency must be a valid ISO 4217 currency code (Error code(s): T52).
The integer part of Amount must contain at least one digit. The decimal comma ',' is mandatory and is included in the maximum length. The number of digits following the comma must not exceed the maximum number allowed for the specified currency (Error code(s): C03, T40, T43).
Currency must be the same for all occurrences of field 71F and 32a in the message (Error code(s): C02).