I have a customer who has been sharing a calendar from a user who has no longer been at the company for over a year. The calendar is essential to their business as it tracks who and where they dispatch technicians. The calendar is customized so that when they enter an appointment and click on the Categorize button, they get a list of technicians each with their own associated colour. Something happened the other day that has now resulted in a loss of those customized options when they click on the Categorize button and the colours in the calendar for some users. I went into the calendar today logged in as the user and changed the permission for the users who cannot see the colours from editor to owner, but that does not seemed to have helped.

This is in Outlook 2013 in an SBS 2011 environment, users are on Windows 7 pro.

Hi,

If the options are still available for some users, it means the options still exist on the calendar, these users can't see the options probably because they don't have the permission or their local cache of the calendar is corrupted.

As you mentioned you have tried to change the permission, then it doesn't seem to be the cause here.

Please let these users who are affected switch Outlook to Online Mode, check if the problem persists. If in Outlook Online Mode the issue doesn't exist that the users can see all the options fine, please let the users run Scanpst.exe to scan and repair the errors in the Outlook Data File(.ost), check if the problem persists:

https://support.microsoft.com/en-us/kb/272227

We can also remove the .ost file since Outlook can generate a new one to sync with the mailbox the next time it starts, .ost file is like a local cache and removing it won't affect the information in the mailbox.

Regards,

Melon Chen
TechNet Community Su