There is no technical specification related to ISO 20022. Since business cases involves in money transfers, developer community would expect data structure related to messaging attributes like Swift.
This topic should help to decide how we can best support this standard.
atsticks: I assume we should add an according ItemFormat implementation and document it as requird part of an implementation.
Definition: Amount of money of the cash balance.
Data Type: ActiveOrHistoricCurrencyAndAmount
This data type must be used with the following XML Attribute: Currency (Ccy) which is typed by
The number of fractional digits (or minor unit of currency) must comply with ISO 4217.
Note: The decimal separator is a dot.