Managing resources. A resource manager includes programmatic code for managing resources in the computing environment. Resources available from resource systems within the computing environment are managed. Methods may include receiving user input indicating one or more of that a new entity should be added to the resource manager, that an entity represented by an entity object of the resource manager should have permissions removed at the resource manager, or that an entity represented by an entity object of the resource manager should have permissions added at the resource manager. In response to receiving user input, events may be generated and objects created or removed from the resource manager for from downstream resource systems. The events may specify workflows that should be executed to perform synchronization between objects at the resource manager and objects at a downstream resource system by adding or changing rules in an expected rules list.