To send SMS, go to Communicate > Send SMS. Here you can see four tabs present at the top right corner in the send SMS page then select Group, Individual, Class, and Today's Birthday which users group you want to send SMS to.
Send SMS to Group-
To send SMS to Group (Student's, Guardian, Admin), click on the Group tab present at the top right corner of the page then enter the details message Title, Send Through, Message and select Message To (student, Guardian, and admin) and then click on Send button.
Send SMS to Individual-
To send SMS individual, click on the Individual tab present at the top right corner of the page then enter the details message Title, Send Through, Message, and select Message To (Select the group of the person to whom you want to send an email and then search for the member name in the textbox and to add more students click on the add button) and then click on Send button.
Send SMS to Class-
To send SMS class, click on the Class tab then enter the details message Title, Attachment, Message, and select Message To and Section (Here you can select multiple sections) and then click on Send button.
Send SMS to Today's Birthday-
To send SMS today's birthday, click on the Today's Birthday tab present at the top right corner of the page then enter the details message Title, Send Through, Message and Message To, and then click on Send button.