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How to Gather and View Client Side Traces on Skype for Business Client

Sometimes you want to troubleshoot from client side, particularly on Skype for Business Online.

For the 2016 client, client logs are stored in: %LOCALAPPDATA%\Microsoft\Office\16.0\Lync\Tracing\

If you are recreating a scenario, you can exit SFB client and Outlook and delete the folders in this scenario

The OCAddin files relate to the Outlook Add in and won’t delete unless you run outlook

You can then run SfB and it will generate the logs for your scenario.

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You can view the SIP Trace in Snooper, which can be downloaded as part of the Skype for Business Sever Debugging tools: https://www.microsoft.com/en-us/download/details.aspx?id=47263

You will need a particular version of Visual C++ to install the tools.Download it here: https://www.microsoft.com/en-au/download/details.aspx?id=48145 – note you need this exact version, higher versions will block the install of the tools.

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They will be installed to:

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Once you have them installed you can open Lync-UccApi-0.UccApilog and see the snooper SIP log.

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About the author

Tom Arbuthnot

A Microsoft MVP and Microsoft Certified Master, Tom Arbuthnot is Principal Solutions Architect at Microsoft Collaboration specialists Modality Systems.

Tom stays up to date with industry developments and shares news and his opinions on his blog, Microsoft Teams Podcast and email list. He is a regular speaker at events around the world.

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Tom Talks Microsoft Teams and Microsoft 365 Collaboration news and opinions