Is there any configuration present / any supported tools in ca api gateway to send alert via SMS ?
MAG has an assertion to send SMS. It integrates with Twilio so an account is required to use this.
One-Time Password Policies - CA Mobile API Gateway - 4.1 - CA Technologies Documentation
what type of alerts are you looking for? the one suggested by Joe is part of One Time password functionality, but we have other capabilities in MAG such as Push Notifications.
It will help to know the problem you're trying to solve.
Yes, we are looking forward to sending custom messages to the customer in addition to OTP. Does MAG support that?