Subscribing in the Admin Portal and Developer Portal is slightly different. However, it can be subscribed in both portals in the detailed view of the API as well as in the detailed view of the application.

Admin Portal

All APIs to which the user has permissions are available for subscription here. Whether this API is displayed in the Developer Portal is not relevant. It only needs to be deployed on one environment.

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Developer Portal

Only APIs that are visible, active and deployed on at least one production environment can be subscribed to.

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