Page Comparison

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Pros	Cons
No need to manage OTP generation, resend and verification part Quick Initial setup	Improve cost impact. to implement some custom business logic , will take more time, Phone number will be exposed to third party

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Sending SMS or Email are Async call , if format is valid it will return success , but later it will try to send it that might got failure.
As SMS gate way will have api to check delivery reports : https://docs.msg91.com/collection/msg91-api-integration/5/delivery-report/T19VM23R
- possibility to attach a scheduler to get the status based on messageId and update the status in DB
In case of email how can we confirm delivery reports?
What will happen if delivery reports indicates failure ? (cases like blocked or invalid numbers)
What should be frequency to get OTP delivery reports?

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