Reference
SMS Subscriptions
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.
Payload Description
User ID
Merchant ID
The user’s phone number, in E.164 format (eg. +14157582345
)
The user’s email address