Microsoft is unlocking the "Full Potential" of Private Channels in Microsoft Teams: What You Need to Know

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It has been a while since I posted something just about a Microsoft Teams update, as a lot have been Copilot in Teams to be honest. But here is a real Microsoft Teams update I think is worth knowing about, and it involves Security and Compliance as well. Microsoft is rolling out a "major" update to private channels in Teams, starting in late September 2025 and continuing through mid-December. This biggest change in this update is a shift in how private channel data is stored from individual user mailboxes to a dedicated channel mailbox. Not only will this simplifie compliance management, it will also and align private channels with shared channels, making governance and experience more consistent across Teams. This update promises to increase the support up to 1000 channels per team and 5000 members per channel, removing previous limitations. Teams will also allow meetings to be scheduled directly within private channels, enhancing collaboration.  For organizations using Micr...

Important certificate note to self

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I've been having issues on a server, where I was supposed to create a secure channel (tls) to a remote server for synchronizing the exchange free/busy information on users. I long suspected it to be certificate related, but I always ended up by turning ssl of (thus running unencrypted). I thought I had it all done right, when importing the root certificate of the CA to the trusted root. But it never solved my problem. 

Thanks to my OCS course, a bright light dawned on me. The reason why the TLS failed could be several. First of all, if you are running the sync service as a service on the server, the certificate must be in the trusted root of the computer, not the administrator (or other account which you are installing as). Second, if the service is set up to "run as" a separate user. It is a good idea to log on as that particular user, and import the certificate as that user. Quite simple when you think about it, but not always intuitive..... :P