Is it possible to opt a user into multiple opt-in paths within the same campaign using the API

MC Admin

August 21, 2025 20:29

Mobile Commons: Is it possible to opt a user into multiple opt-in paths within the same campaign using the API?

Resolution Summary

confirmed that subscribers can only be opted into each campaign once through the API.

Answer

If a mobile number is subscribed to an account through the API, it can be opted into each campaign one time and one time only through the API.
If a subscriber is already a member of a campaign, they will not receive a welcome message, and no new subscription will be created.
if an API request is made to opt in a user in a campaign and the user is currently opted out from it, they will not receive a welcome message, and no subscription will be created.

Question::Other

Keywords API opt-in campaign opt-in-path

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