The options for this field are:
- None: The system will not keep any register for the cards and you will only specify rules how to identify and validate the cards when they are used. In this case you will not keep any information about the member.
- Register: The system will keep all valid cards in register for validation, but they are not linked to any members.
- Linked to Contact: The system will keep all cards in register and they will be linked to a Member Contact.