A system provides cloud-based identity and access management. The system receives a request by a web gate for an identity management service for reaching an application, and determines a tenancy from a header value of the request. The system looks up a policy configured to be applied for the tenancy, and applies the policy to the request. The system then sends the request to a microservice based on a result of the applying of the policy to the request, where the microservice performs the identity management service for reaching the application.