You need the name and phone number of your contacts to be able to send out messages. You can choose to include additional information such as email address, birthday and customer number if you would like. If you have not included the country code in the imported list, it can be selected in the menu below before the list is imported. You can import contact lists as an excel file or .xls and .xlsx files. You can import the contacts into a new contact list, or into an existing list.