Sending mass SMS texts to your contacts is only available if you have an SMS number set up within your profile and enough SMS text message licenses.
To send mass SMS texts, go to CRM → View Contacts, and search for your contacts.
For a guide on searching for contacts, see this.
Once you have selected your contacts, click Actions → Send SMS.
If you do not select any contacts, an SMS will be sent to all contacts in the search results.
On the next page, you can compose a message for the contacts.
In the editor, you can select details, such as the first name, to automatically insert in the message.
When you have finished composing your message, click the green Check License button to ensure you have enough licenses to send this SMS to the group of contacts.
Once you are ready, click the blue Send button.
