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HubSpot Sales for Outlook install error: "Customized functionality in this application will not work..."

Last updated: November 1, 2017

Available For:

Marketing: N/A
Sales: Free, Starter, Professional

When attempting to install HubSpot Sales for Outlook, you may encounter the following error message:

Customized functionality in this application will not work because the certificate used to sign the deployment manifest for Sidekick for Outlook or its location is not trusted.

  

Follow these steps to resolve the error:
  • Open Internet Explorer.
  • Click the settings gear at the top right of the window and select Internet Options.
  • Click the Security tab. 
  • Click Trusted Sites.
  • Click Sites and add https://dl.getsidekick.com as a trusted site.
  • Copy and paste this link into Internet Explorer: https://app.getsidekick.com/outlook/download.

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