Anonymous users can self-subscribe to the API Store using the instructions given below.
1. Open the API Store Web application in a browser by typing the URL: https: //<YourHostName>:9443/store.
2. Click the "Sign-up" link that appears at the top, right-hand corner of the window.
3. Fill the sign up form that appears and click the "Submit" button.
When signing up, the user is assigned the default "subscriber" role as described in section User Roles in API Manager This role has permission to subscribe and consume APIs.
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You can also plug an external BPEL workflow to the user signup process. A step-by-step guide to inserting a workflow is given in O - Plugging an External BPEL Workflow sample.