Step 1: You can respond to a contact via SMS in the interaction panel of the contact card. First, select SMS as a channel.
Step 2: Select the ''from'' and ''to'' numbers you wish to use from the fields highlighted in red below. Please note that all SMSes are currently set to no-reply.
Step 3: Compose the body of the SMS in the text box highlighted below. Please note that the Send button will be greyed out if either the "from" or "to" numbers have not been selected. Click Send. Once the SMS has been sent, it will display in the interaction history of the contact.
Step 4: If you no longer wish to send the SMS, you have the option to delete the draft. When you click on the bin icon you will be asked if you are sure you want to delete the SMS. You cannot delete an SMS after you have sent it.