Step-by-step process to configure SMS 

Follow the below steps to send SMS seamlessly—

i) Sender ID Approval (Some countries have specific rules and regulations for Sender ID) -

To send SMS globally - Follow sender ID rules for different countries
#Note - For Indian companies to send SMS in India - Follow DLT guide

ii) Template (To keep your communication secure, spam free, and easy to edit anytime)

Add a Template for transactional SMS in MSG91 - Follow its quick process

iii) Automate this SMS via RESTful APIs

​Integrate a single Campaign API for all channels - HelpDoc [Recommended]

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OR

Integrate APIs separately for every channel -

For very specific use case which is not being solved by Campaign APIs - Use dedicated SMS API

#Note - If you are implementing OTP/Phone verification then use its dedicated service i.e. SendOTP - Follow its doc here