3088696 - Middleware Failed to connect to SFTP - "Exception message is: java.net.UnknownHostException:"

Your Boomi or CPI failed to connect to SFTP with the following error message: Failed to connect to host: https://sftp.successfactors.com on port 22.  Exception message is: java.net.UnknownHostException:

• SAP SuccessFactors HXM Suite
  
  • Boomi
  • CPI

You cannot use "https://" in the beginning of the URL to connect to an SFTP from a middleware. 

Remove the "https://" and use only the SFTP URL, like for an example: sftp4.successfactors.com.

Use https://sftp4.successfactors.com only when connecting to the SFTP from the browser. 

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