Only approved channels may be used for subsequent customer contact for advertising purposes. Go to Data use purposes to create contact channels offered for subsequent communication.

1. The default contact channels for advertising purposes are telephone, mail and email.
2. Go to the  Administration tab and select  Settings >  Use of personal data to add further channels.
3. Enter further contact channels in the user-defined fields "Additional channel 1" and "Additional channel 2". These fields will appear under the user-defined name in input wondows and as "Channel1" or "Channel2" in lists.
   E.g.: Instagram, Facebook