Forum Discussion

Copper Contributor

Sep 15, 2017

Unknown Skype for Business error incur mobile IM history cannot be saved to Exchange

Hey dearest experts! I have an unknown Lync Server event error on my SBA server which incur the mobile IM history cannot be saved to Exchange server. but retrieving old conversation history from Exch...

Mobile Client

KennethML

MCT

Sep 20, 2017

Hi Vincent.

This looks like a problem with server side conversation history not being supported on the branch site deployment. If you move the user to a frontend pool, will the IM history then be written to Exchange Server??

Which CU version are you running on the frontend servers and SBA??

/Kenneth ML

Vincent Hui

Copper Contributor

Sep 20, 2017

Hi Kenneth,

Thank you for your reply.

My front-end is 2015 RTM and my SBA is 2015 CU3.

According to the CU note, the server-side conversation history is no longer supported on branch site deployment, is it the reason of the mobile issue?

https://support.microsoft.com/en-us/help/3097645/november-2015-cumulative-update-6-0-9319-102-for-skype-for-business-se

Thanks,

Vincent

KennethML
MCT
Sep 20, 2017
Hi Vincent.

That could be the reason.

/Kenneth ML
- Vincent Hui
  Copper Contributor
  Sep 20, 2017
  Hi Kenneth,
  
  Thank you for your reply.
  
  Will contact service provider is it possible to downgrade to CU1.
  
  Thanks,
  Vincent