Extensive CRM function
The Address Book module also offers you the option of making more extensive use of the CRM-F7 function. This means that in addition to managing the contact details of your relations, you can also add extra notes to a contact. This can, for example, be about special agreements with customers, a summary of the appointment, and so on.
The F7 function is already provided by default, but with the help of the address book, the possibilities become considerably more extensive: Files, etc. can also be linked to each F7 note.