Optional maximumMaximum value of any single virtual card transaction in the minor currency unit of the funding source funding the virtual card transaction.
If undefined, then no maximum value constraint will be applied.
Optional velocityArray of velocity constraints applied to virtual card transactions with amounts in the minor currency unit of the funding source funding the virtual card transaction.
The values are in the format: <amount>/<period>
where <amount> is a number in the minor currency unit
of the currency of the funding source and <period> is
an ISO8601 time period.
If undefined, then no velocity constraints will be applied.
Representation of virtual card transaction velocity constraints.