Added a Notification channel for Instant Message (IM).. specifically Skype 2015 but right as I did I got the following error for all of my Management Servers : "Unified communication Api libraries are not installed on notification server" - Channel not working has been resolved but not the alerts... any ideas how to resolve the false positive Alert Monitor?
Alert Details
Unified communication Api libraries are not found on server <SCOM Management SERVER>. Management group has instant messaging notification channel configured and server <SCOM Management SERVER> is a member of the notification resource pool. Instant messaging notification may fail in case alerts are generated. The following exception was return in attempt to initialize Unified Communication Api libraries: System.IO.FileNotFoundException:
Could not load file or assembly 'Microsoft.Rtc.Collaboration,
Version=4.0.0.0,
Culture=neutral,
PublicKeyToken=31bf3856ad364e35' or one of its dependencies.
The system cannot find the file specified. File name:
WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
Causes
SCOM is still checking for UCMA 3.0 (version number 4.0.0.0) and thus giving this error.
*But bear in mind that this error does not actually mean that your IM channel is not working.
Resolutions
Option 1: Try a similar option Volkovskyi Pavel suggested on TechNet, to add a redirect bit for UCMA 5.0 to Mircosoft.Rtc.Collaboration in MonitoringHost.exe.config file at the following path: C:\Program Files\Microsoft System Center 2016\Operations Manager\Server\
Added a comment to the bit to later tell it apart from.
<!--Operations Manager IM Notification Channel UCMA 5.0 Redirect from any earlier UCMA Runtime version (0.0.0.0-5.0.0.0) to UCMA 5.0 Runtime (6.0.0.0) Added by Mr.Optional-->
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Microsoft.Rtc.Collaboration" publicKeyToken="31bf3856ad364e35" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="6.0.0.0"/>
</dependentAssembly>
</assemblyBinding>
*This fixed my channel not working but did not remove the Alert
Option 2: Try adding the three files to SCOM Server folder as it seemed to help a few people but doesn't seem to reliable due to differences in file versions and availability of the XML file at least for me. C:\Program Files\Microsoft System Center 2016\Operations Manager\Server
Microsoft.RTC.Collaboration.DLL
SIPEPS.dll
Microsoft.RTC.Collaboration.XML
Option 3: Once you have managed to get the IM channel working just disable the Alert Monitor: Unified Communications Managed API Runtime Installation Check
