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Unable to open project in MSP if CA Clarity addin is inactive (AppData needs to be cleared)


Article ID: 124102


Updated On:


Clarity PPM On Premise Clarity PPM SaaS


When you're in a project and you try to open your scheduler in Microsoft Project (MS Project/MSP), nothing happens.

You notice one or more of the below symptoms:

  • The MSP plugin/ CA Clarity Addin in MSP is showing as inactive. 
  • The CA Clarity/PPM Integration tab is not visible / CA PPM Integration tag not available
  • 'caclarityaddin' gets unloaded / ribbon is gone every time MSP is launched
  • Because the integration tab is not available, unable to perform options such as save plan back to Clarity


This can happen if the addin becomes inactive. To Verify if the addin is inactive (versus disabled):

  1. In MSP, go to File->Options
  2. Click on 'Add-Ins' on the left hand menu
  3. Check the Inactive Application Add-ins section on the right hand side
  4. If the Clarity Add-In is listed in the inactive section review the Resolution steps of this article


Release: All supported Releases


Delete the below 2.0 folder after creating a backup of the folder.

  1.  Open C:\Users\%USERNAME%\AppData\Local\Apps
    If you can't see the AppData folder:
    1. Go to Organize->Folder and Search Options->View->
    2. Select radio button 'Show hidden folders, files and drives'
    3. Click OK to see the AppData folder
  2. Delete the 2.0 folder after creating a backup
  3. Install the CAClarityAddin:
    1. Navigate to the following folder directory: CA\Clarity\CA Clarity PPM MSPInterface\addin
    2. Double click setup.exe to run through the install process for the Addin  

Additional Information

If the above doesn't help, see also: