Resolution Summary

Confirmed that users cannot be opted out of opt-in paths. They can be opted out of a specific campaign or the entire account.

Answer

it is not possible to opt a user out of an opt-in path.
An opt-in path defines the way subscribers join a campaign, meaning when users engage with an opt-in path, they are subscribed to the campaign associated with it.
users can be opted out of a specific campaign or the entire account.
The endpoint used to opt users out is the Profile Opt Out endpoint.
For the Profile Opt-Out endpoint, you can include either the Campaign-ID parameter or the Subscription- ID parameter in the request, but not both at the same time.
Further details about the endpoint can be found in the article

Question::Other

Keywords API opt-in-path

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