To complete the progressive profiling action, the flow service calls the POST /{environmentId}/flows/{flowId} endpoint operation and uses the application/vnd.pingidentity.form.submit+json custom media type in the Content-type HTTP request header to identify the action.

The progressive profiling action asks for a value for the nickname user schema property in the request body. If provided, the form.submit action submits the form, to add a nickname to the user record.