# notification_v1_campaigns_unsubscribe_retrieve Unsubscribe from a campaign using a hash Endpoint: GET /api/notification/v1/campaigns/unsubscribe/{unsubscribe_hash}/ Version: 3.59.0-ai-plus ## Path parameters: - `unsubscribe_hash` (string, required) ## Response 200 fields (application/json): - `success` (boolean) - `message` (string)