These webhooks are sent when a user opts into SMS marketing. Thanx does not synchronize downstream SMS marketing opt-in status and users are only prompted to enter a phone number for SMS marketing once. SMS marketing partners are expected to manage confirmation of SMS marketing consent.

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Payload Description

{
  "sms_subscription": {
    "user_id": "woeruijsfwer",
    "merchant_id": "owierywtwt",
    "phone": "+14157582345",
    "email": "example@thanx.com"
  }
}