The first of codes that is three letters once trimmed and uppercased, the
shape of an ISO 4217 code (the code itself is not looked up), or undefined
when none is: how an adapter reads the currency a PSP record states,
reporting NO_CURRENCY when it states none.
The first of
codesthat is three letters once trimmed and uppercased, the shape of an ISO 4217 code (the code itself is not looked up), or undefined when none is: how an adapter reads the currency a PSP record states, reporting NO_CURRENCY when it states none.