One of our customers is facing on interesting problem with Teams meetings. We have tried through different Microsoft support channels but support is not able to escalate the problem because we cannot reproduce the problem intentionally and they reply that without them or us reproducing the problem and using problem steps recorder to record it there is no way of escalating the problem because at their understanding the problem must be “at client side”.
Customer has been using Teams almost from the beginning. At the end of last year they started seeing that on the new meeting invitations (created through Outlook) there is sometimes old meeting invitation ID in the link. This happens to at least three of the users and it is totally random.
Customer has identified that there is no copy & paste magic or anything else going on. All the invitations are created through Outlook and Teams meeting information is added by clicking the Teams meeting button. Users who have had this problem are also advanced so they are well trained and familiar with creating meeting invitations.
When we look at the old meeting from the Teams it says that the meeting was renamed when the new invitation with reused link was created. This means that the totally new people will be able to see the old conversations from the past meetings that were with totally different people with totally different agenda.
We have gotten the original invites from the customer and can see that the only thing linking those meetings together is the same meeting ID (the link).
Customer was already in a situation where confidential data (under the GDPR) was released to people from outside because of the old chat were available in a new meeting. They have hard time trusting the Teams meetings at this point and it doesn’t help that Microsoft is not willing to investigate any further.