Difference between S4B Archiving and Server Side Conversation History RRS feed

  • Question

  • Quick and (hopefully) easy question. I'm not sure I 100% understand the difference between S4B Archiving. The way I believed it to be was that with Server Side Conversation History, all messages get written to the conversation history folder of a user mailbox, and you would use archiving ONLY for users under hold which would write the messages to their purges folder (which of course the users cannot access).

    But I read this article which seems to imply that you need Archiving turned on for conversation history to function


    I guess I want to know:

    • Do I have to have archiving enabled for server side conversation history (and then do all users that want more than 24 hours of conversation history need to have in-place hold enabled?)
    • Assuming i do not need Archiving enabled for server side conversation history to function, how long will the history remain in a person's mailbox by default? Is this adjustable?

    Thanks everyone and sorry for the confusion!

    Monday, May 23, 2016 8:50 PM


  • Hi Brolide,

    In my opinion, you don’t have to have SFB archiving enabled for server side conversation history

    Based on my understanding server side conversation history means the conversation history will be saved to the Skype for Business Server. However, Skype for business Server will sync these data to Exchange Server at last. It’s a new feature with the new Skype for Business Server 2015. In previous version of Lync Server, the mobile client cannot save the conversation history to User mailbox directly, all the conversation histories are saved on the local phone.

    And now with the new feature, instead of device-specific storage, all Conversation History is stored server-side, which means that all your devices can see the same Conversation History.

    Please refer  to


    For SFB archiving please refer to


    These conversation histories remain until you delete them – they are not removed automatically.

    Please refer  to


    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

    Best regards

    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    Eason Huang
    TechNet Community Support

    • Marked as answer by Eason Huang Sunday, June 5, 2016 12:33 PM
    Thursday, May 26, 2016 7:45 AM