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SFTP Receiver Adaper - Authentication problem

Hi, We have a file to SFTP scenario in PI 7.4 single stack, we configured all the SFTP server parameters (Serverr,port,finger print, password authentication, filepath etc) in the receiver channel. While executing this scenario we are getting the following error:

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MP: exception caught with cause javax.resource.ResourceException: java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=our_user_id@HostIP; name=Password authentication; instruction=prompt=ouruserid password

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We checked the password thru WINSCP and it is fine. The SFTP Server admin has given us the SSH Public key, which we added in usr/sap/<System ID>/<Instance ID>/sec location.

Not sure why we face this issues. we are also fine with network connectivity. Am I'm missing any settings ?

How to resolve these type of error ?

Thanks,

Sivakumar.C

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4 Answers

  • Jul 17, 2018 at 09:00 AM

    Hi Sivakumar,

    You can check SFTP server log, to see why it prompts requirement of password.
    Make sure password is provided in SFTP receiver channel, and it's activated successfully.

    Also go through below notes:
    1945020 - SFTP Receiver channel throws UnsupportedOperationException
    2073667 - "UnsupportedOperationException" on SFTP receiver channel

    Best regards,
    Tom

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  • Jul 17, 2018 at 10:01 AM

    Thanks Tom. I guess its because of Keyboard based authentication, In the XPI trace I see the following:

    **************************************************************************************************************************

    Caused by: java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=userid@domain; name=Password authentication; instruction=prompt=usreid's password
    at com.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection$MyUserInfo.promptKeyboardInteractive(SSHConnection.java:615)
    at com.jcraft.jsch.UserAuthKeyboardInteractive.start(UserAuthKeyboardInteractive.java:141)
    at com.jcraft.jsch.Session.connect(Session.java:469)
    at com.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection.<init>(SSHConnection.java:177)
    at com.sap.aii.adapter.sftp.ra.rar.jca.CCIInteraction.getSSHConnection(CCIInteraction.java:1051)
    at com.sap.aii.adapter.sftp.ra.rar.jca.CCIInteraction.sendSFTP(CCIInteraction.java:511)

    *****************************************************************************************************************************

    I also tried setting the advanced parameter but it is not working, Need your valuable inputs.


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  • Jul 17, 2018 at 01:02 PM

    Hi, This is causing the issue. Can we suppress this message in PI. I tried but not working. we use SFTP version 4.3


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  • Jul 31, 2018 at 08:58 AM

    SAP Suggested to go for an adapter Upgrade.

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