usually there is only space for group ids of items rather than individual item details.
but i guess it might be different for different acquirers.
the purpose of loyalty cards is that the messages are usually acquired or processed on non-bank systems so they can go into much greater detail and include individual sale item details
but i guess it might be different for different acquirers.
the purpose of loyalty cards is that the messages are usually acquired or processed on non-bank systems so they can go into much greater detail and include individual sale item details