# Abo-Modell aktivieren Schaltet ein Abo-Modell aktiv. Endpoint: PATCH /projects/{project_id}/subscriptions/plans/{plan_id} Version: 2.0 Security: basicAuth ## Path parameters: - `project_id` (integer, required) Projekt-ID. - `plan_id` (integer, required) ID des Abo-Modells. ## Response 204 fields