How To Fix /SCWM/MQ_MANAGER005 - Communication to system &1 not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MQ_MANAGER -

• Message number: 005

• Message text: Communication to system &1 not possible

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/MQ_MANAGER005 - Communication to system &1 not possible ?

  The SAP error message /SCWM/MQ_MANAGER005 Communication to system &1 not possible typically indicates that there is a communication issue between the SAP system and the specified external system (denoted by &1). This error is often related to the integration of SAP Extended Warehouse Management (EWM) with other systems, such as SAP Process Integration (PI) or other middleware solutions.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the external system.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external system can lead to communication failures.
  Service Availability: The external system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication ports required for the connection.
  Incorrect Credentials: If authentication is required, incorrect user credentials can prevent successful communication.
  Queue Management Issues: If using message queues, there may be issues with the queue manager or the queues themselves.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the external system is stable and operational. You can use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration Settings: Verify the configuration settings in both the SAP system and the external system. Ensure that the connection parameters (like host, port, and protocol) are correctly set.
  Check External System Status: Confirm that the external system is up and running. If it is down, coordinate with the relevant team to resolve the issue.
  Firewall and Security Settings: Review firewall rules and security settings to ensure that the necessary ports for communication are open.
  Validate Credentials: If applicable, check that the credentials used for authentication are correct and have the necessary permissions.
  Monitor Queue Management: If using a message queue, check the status of the queue manager and the queues. Ensure that they are functioning correctly and that there are no errors in the queue processing.
  SAP Notes and Documentation: Check for any relevant SAP Notes or documentation that may provide additional insights or solutions specific to your version of SAP EWM.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SM21 (System Log) or SLG1 (Application Log) to check for additional error messages or logs that can provide more context about the issue.
  SAP Support: If the issue persists after troubleshooting, consider reaching out to SAP Support for further assistance, providing them with detailed logs and error messages.
  Integration Documentation: Review the integration documentation for SAP EWM and the external system to ensure that all prerequisites and configurations are met.
  
  By following these steps, you should be able to identify and resolve the communication issue indicated by the error message /SCWM/MQ_MANAGER005.