Have you tried using the SmartLocks app in the SmartThings Marketplace?
If you looking to program multiple locks or have more control over your lock users like scheduling, presence based codes etc you may want to check out RBoy Apps and the User Management SmartApp [RELEASE] Door lock code/lock user management (create, delete and schedule codes) with automatic lock/unlock, custom user actions and SHM/ADT integration
It can program an unlimited number of locks and do a lot more