Regulations require that you first register your number to use these resources to send SMS traffic to US and Canadian mobile destinations. If you are sending to Canada or the US and have not already done so, please see our documentation to register your Twilio phone number or Toll-Free number before you use this template.
This app shows an example of a preference center allowing your user to choose from two messaging types (email and SMS) to receive communication from your brand. Additionally this will integrate with the Phone Number Lookup and Email Validation API to clean data entered by users.
The code for this sample is available on GitHub to view and download.
You will need an Account SID and Auth Token in order to run this code.
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Follow the setup instructions in the README to get the sample up and running.