A Text (SMS) Action is an action that automatically launches a text message from the user's smartphone.
It has two basic modes of operation: Destination and Share
Destination - This mode initiates a text message from the user’s phone to a telephone number you enter into the Action. Use this mode to control the text-to number such as when the messages come back to you or in applications where you want to capture telephone numbers.
Share - This mode initiates a text message but lets the user choose who the message goes to. Use this mode to promote the sharing of this app to friends or associates of the user.
Create a Text (SMS) Action
If destination mode, enter a destination number
Optionally, enter a message you want to be pre-populated. Add the URL of this app if you have left the destination number blank and want to help users to share the app.
Reference the Action Formatting and Controls FAQ for a refresher on the controls that are common to Actions.