Unsubscribes a user from a group based on an email address. The unsubscription is associated with a specific message. An unsubscribe confirmation email is sent to the user. Returns success only when the user is unsubscribed from the group and the unsubscription is associated with the specified message.
Email of the user.
ID of the group.
ID of the message.
email, groupId and messageId are mandatory, but are missing or incorrect. / User with email does not exist. / Group with id does not exist. / Message with id does not exist. / Membership with groupId does not exist.
Error response: {
"errorActor": "CLIENT",
"errorCode": "INVALID_REQUEST",
"message": "Not Found"
}