The custom form cannot be opened. Outlook will use an Outlook form instead.

 

“The custom form cannot be opened. Outlook will use an Outlook form instead. The form required to view this message cannot be displayed.  Contact your administrator.”

We’ve been messing with custom forms in Microsoft Outlook and Microsoft Exchange lately. I had one user who tried openning a custom form in Microsoft Outlook 2007 and they received the error message below

CustomFormError

The fix for this was actually very simple.  Below are the steps that solved our issue.

  1. Open Outlook 2007
  2. Click Tools at the top
  3. Scroll down and click Options
  4. Click Other tab
  5. Click Advanced Options button
  6. Click Custom Forms button
  7. Click Manage Forms button
  8. Cick Clear Cache button
  9. Close out of everything except Outlook and you should be good to go!

  15 comments for “The custom form cannot be opened. Outlook will use an Outlook form instead.

  1. Pete Daggett
    February 13, 2011 at 9:20 pm

    Thanks!

  2. BG
    March 18, 2011 at 10:23 am

    Thanks. This seemed to help with Outlook 2010 as well.

  3. lars
    June 16, 2011 at 8:45 am

    Genious

  4. Clarks
    June 27, 2011 at 1:39 am

    Thank You!

  5. cuber
    July 27, 2011 at 2:21 pm

    Thanks for your posting, and it solved the issue…

  6. Mary
    July 28, 2011 at 1:22 am

    So easy! Thank you!

  7. Se`1
    October 2, 2011 at 10:10 pm

    Thank you.

  8. mayavi
    October 13, 2011 at 4:58 am

    This option did not work for me

  9. November 17, 2011 at 12:41 am

    Nice one – sorted problem in seconds flat. Thanks very much.

  10. mjc
    December 13, 2011 at 10:50 am

    Thanks, This worked for me. Very useful.

  11. February 28, 2012 at 8:50 am

    Thanks, this worked for me!

  12. Shepardine Small
    September 26, 2012 at 7:12 am

    Worked perfect-thanks,

  13. Pradeesh
    February 12, 2013 at 11:49 pm

    Thanks, it worked for outlook 2007.

  14. ryan
    October 25, 2013 at 4:12 pm

    I tried the steps above, I am using office 2007, I follow the steps but the same error message came up..help me please

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