This KB article will help you to add a sms template.You can use this feature to send short message with a one-time password (OTP) code to the users to log into the appliance.
NOTE: Â Always take backup of your settings before making any changes.
You can use this feature to send short message with a one-time password (OTP) code to the users to log in to the appliance.
 To add an SMS Template:
1. To add a policy, navigate to the Services | SMS Templates screen within the Secure Mobile Access management interface and select SMS Templates.

2. Provide the necessary SMS Template information. Select the SMS Provider. The two providers are AliSMS and Twilio. You can add multiple provider templates in the appliance and use them in different domains or user levels.

3. Enter Name.
4. Enter Description for the SMS Template. Select the International check box, if applicable.
5. Enter Access Key ID.
6. Enter Access Key Secret code.
7. Enter Signature Name.
8. Enter Template/Content Code.
9. You can test the newly created SMS template. Enter Phone Number in the TEMPLATE TEST field, and click Test.
10. Click Accept to confirm the changes.