An API was designed in API Designer, published to Anypoint Exchange, then imported into APIManager.

In API Manager, apply a Client ID Enforcement policy for the API instance

In Anypoint Studio, code a custom policy tor Client ID Enforcement and then add the custom policy to Runtime Manager for the Mule application deployment

InAnypoint Design Center, code a custom policy for Client ID Enforcement and then publish the custom policy to the API portal in Anypoint Exchange

In API Designer, add Client ID Enforcement policy requirements to the API specification