Under References you can see and update the names of the references registered for this customer. You can also see and update comments, phone number, mobile phone number, e-mail, document viewer (supplement), fax number, reference category and any extra information.
You can switch positions for the references by right-clicking on the reference and select Move up (Shift + arrow up) or Move down (Shift + arrow down).
If you double-click on the e-mail address on the current row, a new e-mail will be created for that address in the e-mail program. Double-click on the mobile phone number in order to create a new SMS. For this you are required to have a subscription with an SMS operator. The SMS settings are configured under SMS under the System tab in the Settings procedure.