How To Fix /SCWM/CHM_DLV012 - Communication failure occurred between ERP and EWM systems

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/CHM_DLV -

• Message number: 012

• Message text: Communication failure occurred between ERP and EWM systems

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/CHM_DLV012 - Communication failure occurred between ERP and EWM systems ?

  The SAP error message /SCWM/CHM_DLV012 Communication failure occurred between ERP and EWM systems typically indicates a communication issue between the SAP ERP (Enterprise Resource Planning) system and the SAP EWM (Extended Warehouse Management) system. This error can arise due to various reasons, and understanding the cause is crucial for troubleshooting and resolving the issue.
  Causes:
  
  Network Issues: There may be network connectivity problems between the ERP and EWM systems, such as firewalls blocking communication or network outages.
  Configuration Errors: Incorrect configuration settings in either the ERP or EWM system can lead to communication failures. This includes settings related to RFC (Remote Function Call) connections.
  System Downtime: One of the systems (either ERP or EWM) may be down for maintenance or experiencing technical issues.
  Authorization Issues: The user or system account used for communication may not have the necessary authorizations to perform the required actions.
  Data Consistency Issues: Inconsistent or corrupted data being sent between the systems can also lead to communication failures.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Verify that both systems can communicate over the network. Use tools like ping or traceroute to check connectivity.
  Ensure that firewalls or security settings are not blocking the required ports for communication.
  
  
  
  Review RFC Connections:
  
  Go to transaction SM59 in the SAP GUI and check the RFC destination settings for the connection between ERP and EWM.
  Test the RFC connection to ensure it is working correctly. If there are issues, reconfigure the RFC destination.
  
  
  
  Check System Status:
  
  Ensure that both the ERP and EWM systems are up and running. Check for any scheduled maintenance or downtime.
  Look at system logs (transaction SM21) for any errors or warnings that might indicate issues.
  
  
  
  Authorization Checks:
  
  Verify that the user or system account used for the communication has the necessary authorizations in both systems.
  Check roles and profiles assigned to the user/system account.
  
  
  
  Data Consistency:
  
  Investigate any recent changes or data uploads that might have caused inconsistencies. Ensure that the data being sent is valid and complete.
  Use transaction /SCWM/PRD to check for any inconsistencies in the EWM system.
  
  
  
  Review Application Logs:
  
  Check the application logs in both systems for more detailed error messages that can provide insights into the root cause of the communication failure.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  Documentation: Review the official SAP documentation for both ERP and EWM systems to ensure that all configurations are set up correctly.
  Support: If the issue persists after troubleshooting, consider reaching out to SAP Support for further assistance.
  
  By systematically checking these areas, you should be able to identify and resolve the communication failure between the ERP and EWM systems.