SAP Knowledge Base Article - Preview

3120703 - PO SFTP adapter authentication request from server could not be processed

Symptom

  • In Process Integration (PI) or Process Orchestration (PO) SFTP Adapter has been updated to SP05.43 or higher
  • After this, integrations using either the Sender or Receiver SFTP Adapter start to fail with error similar to below: 
    Catching java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=xxx@<sftp_server>; name=Password authentication; instruction=prompt=xxx password
  • If you trace using the XPI Inspector you will see an error similar to below: 
    SSH_MSG_NEWKEYS sent
    SSH_MSG_NEWKEYS received
    SSH_MSG_SERVICE_REQUEST sent
    SSH_MSG_SERVICE_ACCEPT received
    Authentications that can continue: keyboard-interactive,password
    Next authentication method: keyboard-interactive
    Disconnecting from <sftp_server> port 22
    ~p.ra.rar.jca.SFTP2XI.sftpConnection Catching java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=xxx@<sftp_server>; name=Password authentication; instruction=prompt=xxx password
    at com.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection$MyUserInfo.promptKeyboardInteractive(SSHConnection.java:419)
    at com.jcraft.jsch.UserAuthKeyboardInteractive.start(UserAuthKeyboardInteractive.java:171)
    at com.jcraft.jsch.Session.connect(Session.java:468)
    at com.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection.<init>(SSHConnection.java:156)
    at com.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.getConnection(SFTP2XI.java:149)
    at com.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.sftpConnection(SFTP2XI.java:326)
    at com.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.invoke(SFTP2XI.java:942)
    at com.sap.aii.af.lib.scheduler.JobBroker$Worker.run(JobBroker.java:529)
    at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:185)
    at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:302)
    Exception received: java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=xxx@<sftp_server> ; name=Password authentication; instruction=prompt=xxx password 


Read more...

Environment

  • SAP NetWeaver 7.5
  • SAP Process Integration, secure connectivity add-on - SP05.43 or higher

Product

SAP NetWeaver 7.5 ; SAP NetWeaver Process Integration, secure connectivity add-on 1.0

Keywords

connection stuck, blocked,  , KBA , BC-XI-CON-SFT , Secure File Transfer Protocol Adapter , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.