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Phone carrier has blocked this message

0

Hi,

I am facing issues when sending SMS via local route in India. Below are the steps that has been followed.

DLT registration completed with vilpower and created a unique header name Raised a request to AWS to register the same as senderID. I am building a mobile app and the purpose of this is only OTP alone. We are using AWS Cognito and Cognito is sending SMS on behalf of us on sign-up and attribute verification. There is no way to save SMS template id or entity id on Cognito.

Before sender ID registration we were using the international route for SMS and it was working. The moment, ticket for local sender ID was approved and registered, we are getting an error in the logs as "“Phone carrier has blocked this message”. I have mailed VILPOWER on the error asking for support. I checked with VILPOWER team and got to know that PE-TM mapping is not done by AWS. I raised a question on AWS support but received standard response that post a question here on this community board.

Is there any other setup missing from my side? Any guidance / inputs given will be appreciated.

Thanks, Yash

  • AnaAtAWS MODERATOR
    4 months ago

    Are you registered to send over local routes?

Topics
Security, Identity, & ComplianceApplication IntegrationFront-End Web & MobileBusiness Applications
Tags
Amazon CognitoAmazon Simple Notification Service (SNS)Amazon Pinpoint
Language
English
Yash Patel
asked 4 months ago159 views
1 Answer
0

Hello,

Currently, Cognito doesn't support passing Template ID or Entity ID. Hence, the solution to this problem is to manually process your DLT registered templates with our AWS Downstream providers.

Hence, in order to do that while registering your SenderId with AWS, the corresponding limit increase team will ask you if you're passing the parameters like Entity Id and Template Id while making the API request. You can respond to that question with "NO", our dedicated team will further work with our downstream providers for the manual processing of all your registered templates. Once processed, you don't need to manually pass these parameters and can directly send SMS via Cognito.

If you have done the exact same steps while registering sender ID with AWS, please make sure you are following the registered template while sending messages.

If that is also done, please raise a AWS Support case with the message IDs to investigate further with downstream providers

AWS
SUPPORT ENGINEER
Palak
answered 4 months ago
  • Yash Patel
    3 months ago

    Thanks for your response.

    I have already mentioned that I am using Cognito and there I can't set DLT IDs in the support ticket. I have raised another ticket to register another sender ID by clearly explaining I am using those SMS templates in Cognito, but the result is the same. They are sending me standard responses - check pinpoint documentation, ask question in re:post, or purchase a support plan to talk to the technical team.

    Now my sender ID is already registered so can you please tell me in which section I should raise the support ticket to ask them to manually process my DLT registered templates?

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