When attempting to make a change (e.g. reschedule) a Lync online meeting I receive an error dialog box that says "You can't make changes to this online meeting because it has some properties that are not valid. If changes are necessary, please delete this meeting and reschedule."

The meeting was scheduled using the New Online Meeting button in Outlook 2010 and this error happens repeatedly.

What is the problem and how do I fix it?

Is it only happening to one user or everyone?  If just one user, try resetting the users conference ID (through your dial-in URL) and try a new meeting.

Hi Jp,

For scheduling Online Meeting, you can go to Outlook and select Online Meeting in the New Items menu. And you can also click the New Online Meeting button from the Calendar. Please have a try.

And make sure Lync 2010 and Outlook integration goes well without any issue.

• Proposed as answer by Noya LauModerator Tuesday, September 13, 2011 10:28 AM
• Marked as answer by Noya LauModerator Wednesday, October 05, 2011 8:09 AM

Hi Jp,

Any update?

We have recently upgraded to Lync from OC and I am getting the same error message any time I create an "Online Meeting" using the Lync button in Outlook.  Any ideas what "properties that are not valid?"  I am using Outlook 2007 and Lync 2010.

I am having identical issue with Outlook 2010 and Lync 2010.  The responses above as to a solution are not a solution (they explain how to create an online meeting, which theoretically already exists as this only occurs when opening meeting that are online/lync).   I see no solution in this thread.

Still searching...

PK

Has anyone found a resolution for this? I have the same issue.

I too am confused by the post that is marked as an answer. It must be a MS tech, as what was posted is technically accurate but completely useless in this situation.