Skype for Business Server User Management includes an Active Roles scheduled task that complements the Master Account Management policy to enforce synchronization of master and shadow account properties, and to capture existing Skype for Business Server users whose master account happens to fall under the control of that policy. The scheduled task object is in the Configuration/Server Configuration/Scheduled Tasks/Builtin container. The name of the object is Skype for Business - Master Account Management. The task is scheduled to run on a daily basis. Normally, you do not need to modify that scheduled task.

The operation of the task affects only the user accounts that are in the scope of the Built-in Policy - Skype for Business - Master Account Management Policy Object (or a copy of that Policy Object). When run, the task performs the following actions on each of those user accounts:

• If the user account does not have a shadow account that is enabled for Skype for Business Server, then skip over that user account.
• If the user account has a shadow account that is enabled for Skype for Business Server but does not store a reference to that shadow account, then create the reference to the shadow account on that user account.

  This action enables Skype for Business Server User Management to administer exiting Skype for Business Server users, possibly enabled for Skype for Business Server by using an earlier version of Skype for Business Server User Management or without the use of Skype for Business Server User Management.

• If the user account has a shadow account that is enabled for Skype for Business Server and stores a reference to the shadow account, then copy the synchronized properties from the master account to the shadow account, and copy the back-synchronized properties from the shadow account to the master account.

  This action ensures that the shadow account properties are updated with the latest changes to the master account properties and vice versa.