User has sent a meeting request.After somedays he modifies the time and resends them to the receipients.The updated time is reflected to all the recepients expect to the organizer? Also updated meetings do not appear in the invitees meeting? Please advice a solution

is it happening only for particular user ?If it is so check whether he is using cache mode. -bpara

Yes, Cache mode is by default enabled.It is a normal issue which we are facing.

Hi Which version of Exchange and Outlook are you referring to? Same issue when OWA is used?Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Exch 2k7 and outlook 2K3. Yes.same issue.

Have you updated to the latest SP level and rollups? I would start with that if you don't got any other good suggestions Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

This is for a single user and not all of them.

Hi, Have you tried to send the update from OWA? Do the invitees receive the meeting update message? If the issue persists when sending the update from OWA, I recommend you disable the user’s mailbox and reconnect it. Then test to see if the issue persists. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT