Ask the Expert

Shared calendar discrepancies between Microsoft Outlook and OWA

Lately, we have been noticing a discrepancy between Microsoft Outlook and Outlook Web Access (OWA). When users access a shared calendar, it looks different depending on whether they use Outlook 2003 or OWA to open it. What could be the problem?

    Requires Free Membership to View


It's hard to know for certain what you mean by "it looks different." There are many interpretations of this phrase, such as "the color scheme looks different" or "the layout looks different." However, I'm going to take a leap of faith and assume that you mean that OWA shows different appointments in the shared calendar than you see with Microsoft Outlook 2003.

If that is the case, then I would ask how your Microsoft Outlook 2003 is connected to Exchange Server. Are you on the LAN? Are you using Cached Exchange Mode or offline folders? If that is the case, then it is possible that your Microsoft Outlook is (or thinks it is) offline and has not synchronized with the Exchange server and you are not seeing a "real-time" view of the calendar. OWA on the other hand, should display the updated contents of the calendar.


I have same issue with a public folder calendar. I'm not using offline folders or cached mode. Do you have any other ideas as to why some appointments show in Microsoft Outlook, but not in OWA?
—Jean S.

Do you have comments on this Ask the Expert Q&A? Let us know.

Related information from

  • Tip: OWA and Outlook Calendar inconsistencies
  • Tip: Fixing corrupt Microsoft Outlook calendar entries
  • Expert Advice: Email and Calendar time discrepancies
  • Learning Center: All about .OST files
  • Reference Center: Microsoft Outlook Contacts and Calendar resources
  • This was first published in February 2007

    There are Comments. Add yours.

    TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

    REGISTER or login:

    Forgot Password?
    By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
    Sort by: OldestNewest

    Forgot Password?

    No problem! Submit your e-mail address below. We'll send you an email containing your password.

    Your password has been sent to: