Various technologies described herein pertain to policy management on a mobile device. The mobile device includes a device policy manager system that includes a unified interface component and a policy handler component. The unified interface component is configured to receive policy configuration requests from multiple policy sources, including at least an internal policy source component executed by the mobile device and a device management server external to the mobile device. The policy configuration requests include at least a first policy configuration request (a first policy value for a policy) from a first policy source and a second policy configuration request (a second policy value for the policy) from a second policy source. The policy handler component is configured to resolve the conflict between the first and second policy values based on a conflict resolution technique to set a current policy value for the policy that controls the mobile device.