After the big release two weeks ago, Apple has taken a whole lot of complaints over iOS 6. We found out that Fortune 500 organization is seeking that its workers not upgrade their devices to iOS 6 over the bug with Microsoft Exchange conference invites. The problem has also been described on Apple's support community forums. The main problem appears when people decline a meeting invite from an iOS 6 gadget. Rather than simply mailing a notification to the meeting manager that the user won't attend, iOS 6 is mailing meeting cancellation notices for the whole submission list, successfully canceling the request for all guests.

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Let's take a look at  this memo which was sent out to every worker at the company and ask not to upgrade iOS 6:
Information Technology Notice To: Mobile device users who connect personal Apple mobile devices (iPhone, iPad, etc) with company email. What: On September 27, IT notified you of an intermittent issue caused when calendar appointments are declined from devices running the latest Apple operating system (iOS 6). Apple and Microsoft are providing IT with daily updates on their progress toward a resolution. Impact: When appointments are declined from an Apple mobile device running iOS 6, a cancellation is sometimes sent to all meeting attendees instead of sending a decline notice to the meeting organizer. Action to take: Do not upgrade your Apple mobile device to iOS 6. If you have an iPhone 5 or have already upgraded a device to iOS 6, please do not accept or decline calendar appointments from your Apple device until further notice.
Companies have informed both Apple and Microsoft, but there doesn't show up to be a open public timeline for a solution. iOS 6 clients have already been affected by one more issue with Exchange, this time its push delivery of e-mails. To know more information stay with us and you will the first to know the best!