This update let you enable the delegate management feature for Unified Communications Web API (UCWA) that’s based on Microsoft Lync Server 2013.
How to get this update
To get this update, install the following updates:
July 2017 cumulative update 5.0.8308.992 for the Lync Server 2013, Unified Communications Managed API 4.0 Runtime.
July 2017 cumulative update 5.0.8308.992 for Lync Server 2013, Core Components.
July 2017 cumulative update 5.0.8308.992 for Lync Server 2013, Web Components Server.
Note After you install this update, run the following Skype for Business management PowerShell command to enable the feature:
'Set-CsPlatformServiceSettings –EnableDelegateManagement $true'