Outlook Web Access

skyjumperdude used Ask the Experts™
Strange issue. There is one user which can view the calendar from OWA, open appointents already create. But when the user tries to create a new appoint an error screen appears.

With other uses this does not happen

If I open New --> Contact .. then close it.. and try to create an appointment.. the appointment box appears successfully

Error as Follows:

Bad request
The page that you are looking for might have been removed, had its name changed, had its content expired, or is temporarily unavailable.

Please try the following:

Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
Click the Back button or open the home page for this Web site and look for other links to the information that you want.
HTTP Error 400 - Request is badly formed.
Internet Information Services (IIS)


Technical Information (for support personnel)

Go to Microsoft Product Support Services and perform a title search for the words HTTP and 400.
Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Web Site Setup, Web Site Administration, and About Custom Error Messages.
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Alan HardistyCo-Owner
Top Expert 2011

Does this issue follow the user to another computer?  i.e., have you tried reproducing the same problem on another computer logged in as the same user?
remmett70Network Manager

Can the user create emails, contacts or anything else?

Almost sounds like a popup issue.


Hello. This issue happens on any computer with the same user. They can create emails and contacts without any issues
Top Expert 2011
Then inb that case - it sounds like a user account problem with Exchange.  Can you setup a new user account for this user and test it out, then if the problems goes away, delete their existing account (after extracting their email) and create them a new account.

Are u facing same problem from Outlook as well if yes then Export the user calendar in to .psts & create new appointment

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