How To Fix /SCWM/MFS044 - Communication channel &1 of PLC &2 is not synchronized

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 044

• Message text: Communication channel &1 of PLC &2 is not synchronized

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/MFS044 - Communication channel &1 of PLC &2 is not synchronized ?

  The SAP error message /SCWM/MFS044 Communication channel &1 of PLC &2 is not synchronized typically occurs in the context of the SAP Extended Warehouse Management (EWM) system when there is a communication issue between the SAP EWM system and the Programmable Logic Controller (PLC). This error indicates that the communication channel between the two systems is not properly synchronized, which can lead to issues in data exchange and process execution.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP EWM system and the PLC.
  Configuration Errors: Incorrect configuration settings in the communication channel or PLC settings can lead to synchronization issues.
  PLC Status: The PLC may be in a state that does not allow for communication, such as being powered off or in maintenance mode.
  Timeouts: Communication timeouts can occur if the PLC does not respond within the expected timeframe.
  Software Bugs: There may be bugs in the SAP EWM or PLC software that affect communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP EWM system and the PLC is stable and functioning properly. You can use tools like ping or traceroute to diagnose network issues.
  Review Configuration Settings: Verify the configuration settings for the communication channel in SAP EWM and ensure that they match the settings on the PLC. This includes checking IP addresses, ports, and protocol settings.
  Check PLC Status: Ensure that the PLC is powered on, operational, and not in a maintenance mode. Check the PLC logs for any errors or warnings.
  Increase Timeout Settings: If timeouts are suspected, consider increasing the timeout settings in the communication configuration to allow for longer response times.
  Restart Communication Channel: Sometimes, simply restarting the communication channel or the PLC can resolve synchronization issues.
  Update Software: Ensure that both the SAP EWM and PLC software are up to date with the latest patches and updates, as this can resolve known bugs.
  Consult Documentation: Refer to the SAP EWM documentation and the PLC manufacturer's documentation for specific troubleshooting steps related to communication issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the /SCWM/MFS044 error message.
  Logs and Traces: Review system logs and traces in both SAP EWM and the PLC for additional error messages or warnings that can provide more context on the issue.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support or the PLC vendor for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the synchronization issue between the SAP EWM system and the PLC.