How To Fix /SCWM/MQ_CONFIG018 - qRFC function module only allowed for original message queue definitions

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MQ_CONFIG -

• Message number: 018

• Message text: qRFC function module only allowed for original message queue definitions

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MQ_CONFIG018 - qRFC function module only allowed for original message queue definitions ?

  The SAP error message /SCWM/MQ_CONFIG018 indicates that there is an issue with the configuration of the qRFC (queued Remote Function Call) function module in the context of the SAP Extended Warehouse Management (EWM) system. Specifically, this error occurs when the system attempts to use a qRFC function module that is not defined as an original message queue.
  Cause:
  The error typically arises due to one of the following reasons:
  
  
  Incorrect Queue Definition: The function module being called is not defined as an original message queue in the system. This can happen if the queue was incorrectly configured or if there are changes in the queue definitions that have not been properly updated.
  
  
  Configuration Issues: There may be issues in the configuration settings related to the qRFC setup in the SAP EWM system. This could include missing or incorrect entries in the relevant customizing tables.
  
  
  Transport Issues: If the system has recently undergone a transport of changes, it is possible that the transport did not include the necessary definitions for the qRFC function module.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Queue Definitions:
  
  Go to transaction SMQ1 (for outbound queues) or SMQ2 (for inbound queues) and check the status of the queues.
  Ensure that the function module in question is defined as an original message queue.
  
  
  
  Review Configuration:
  
  Navigate to the relevant configuration settings in the SAP EWM system. This can typically be found under the Logistics Execution or Extended Warehouse Management sections.
  Verify that all necessary settings for qRFC are correctly configured.
  
  
  
  Recreate Queue Definitions:
  
  If the queue definitions are incorrect or missing, you may need to recreate them. This can involve using transaction SMQ1 or SMQ2 to delete and then recreate the queues.
  
  
  
  Check Transport Requests:
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included in the transport request.
  If needed, re-transport the missing objects.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to qRFC and EWM for any specific instructions or known issues that may pertain to your version of SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SMQ1 - Monitor Outbound Queues
  SMQ2 - Monitor Inbound Queues
  SLG1 - Application Log for error analysis
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for detailed information on qRFC and its configuration in the context of EWM.
  
  By following these steps, you should be able to identify and resolve the cause of the /SCWM/MQ_CONFIG018 error in your SAP system.