How To Fix /SCWM/CCHECK221 - Communication failure on the source logical system

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/CCHECK -

• Message number: 221

• Message text: Communication failure on the source logical system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/CCHECK221 - Communication failure on the source logical system ?

  The SAP error message /SCWM/CCHECK221 Communication failure on the source logical system typically indicates that there is a communication issue between the SAP system and the source logical system, which is often related to the handling of data in the Extended Warehouse Management (EWM) module.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP EWM system and the source logical system.
  Configuration Errors: Incorrect configuration of the logical system settings in the SAP system can lead to communication failures.
  RFC Connection Issues: The Remote Function Call (RFC) connection to the source logical system may not be set up correctly or may be down.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations to access the source logical system.
  System Downtime: The source logical system may be down for maintenance or experiencing issues.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to diagnose network issues.
  Verify Logical System Configuration:
  
  Go to transaction SPRO and navigate to the relevant configuration settings for logical systems.
  Ensure that the logical system is correctly defined and that the settings match the source system.
  
  
  Check RFC Connections:
  
  Use transaction SM59 to check the status of the RFC connection to the source logical system.
  Test the connection to ensure it is working properly. If it fails, check the connection parameters and credentials.
  
  
  Review Authorizations: Ensure that the user used for the RFC connection has the necessary authorizations to access the source logical system.
  Monitor System Status: Check if the source logical system is up and running. If it is down, coordinate with the relevant team to resolve the issue.
  Check Logs: Review system logs (transaction SLG1) for any additional error messages or details that could provide more context about the failure.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP EWM documentation for best practices on configuring logical systems and RFC connections.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify and resolve the communication failure indicated by the error message /SCWM/CCHECK221.