This Field Type stores
CustomerProfileData in the User Content Type.
CustomerProfileData must be stored as a serialized string in base64 format,
because it is impossible to store special HTML characters (
&) in a text or text area field.
The name of the customer (taken from the contact section) can be used for lists. To do it, use the name pattern in the Content Type definition of the User Content Type.
customer_profile_data is the identifier of the Field where the profile data is stored.