'Set Credentials for External Connection' failed with: Unable to retrieve the decryption key

'Set Credentials for External Connection' failed with: Unable to retrieve the decryption key

The above error can be seen while running the Automation service with "Set Credentials for External Connection" task. This error can be seen if Spotfire is unable to access the X.509 certificate. Below error can be seen while running an Automation job. 
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'Set Credentials for External Connection' failed with: Unable to retrieve the decryption key
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Check the image below for reference.


- The account running the Spotfire server and the Node Manager service has access to read the certificate.
- If certificate was copied from another machine to the node manager machine without using MMC(Microsoft Management Console), make sure the certificate was installed on the Node Manager machine after copying.
   Note: Just copying the certificate to the Node Manager server will not work.

 For running the Automation job locally, the certificate needs to be installed on the local machine where the Spotfire Analyst client is running.