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Destination carrier requires sender ID pre-registration



WARNING: 30018

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PROGRAMMABLE SMS
WARNING

You sent a message (message SID: SMXXXXX) to a mobile number in a country that requires Alphanumeric Sender ID pre-registration. Our records indicate that you do not have a registered Alphanumeric Sender ID for this country. This can result in lower delivery quality.

If you are sending transactional SMS (like OTP/auth codes, account-related alerts) you should pre-register for the best possible delivery quality.

Possible Causes

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  • The recipient you are sending a message to is on a network that requires alphanumeric sender ID pre-registration, and our records indicate that your sender ID is not registered.

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