[FEATURE] Checks if a external subscription is active and returns the subscription and contract Ids.

This endpoint is used by the mobile apps to check if a subscription is active and to import it into billwerk platform.
Please find list of possible providers on more information here.

External subscription feature is only available for billwerk customers with the "External Subscriptions" add-on.
Please contact our support team for more information.

Click Try It! to start a request and see the response here!