How To Fix X4606 - The queue type could not be determined for the target system

SAP Error Message - Details

• Message type: E = Error

• Message class: X4 - APO Core Interface: Interfaces for Manufacturing Orders

• Message number: 606

• Message text: The queue type could not be determined for the target 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message X4606 - The queue type could not be determined for the target system ?

  The SAP error message X4606, which states "The queue type could not be determined for the target system," typically occurs in the context of SAP's Application Link Enabling (ALE) or Process Integration (PI) when there is an issue with the configuration of the target system for message processing.
  Cause:
  
  Missing Configuration: The target system may not be properly configured in the ALE or PI settings. This includes missing or incorrect settings in the Logical System, RFC destinations, or the queue type.
  Queue Type Not Defined: The queue type (e.g., tRFC, qRFC) for the target system may not be defined in the system settings.
  Transport Layer Issues: There may be issues with the transport layer or communication settings between the systems.
  System Status: The target system may be down or not reachable, leading to the inability to determine the queue type.
  
  Solution:
  
  
  Check Configuration:
  
  Go to transaction SALE (ALE Configuration) and ensure that the target system is correctly defined as a logical system.
  Verify that the RFC destination for the target system is correctly set up in transaction SM59.
  
  
  
  Define Queue Type:
  
  In transaction SMQS, check the configuration of the queue and ensure that the queue type is defined for the target system.
  If necessary, define the queue type using transaction SMQ1 (for outbound queues) or SMQ2 (for inbound queues).
  
  
  
  Check System Connectivity:
  
  Use transaction SM59 to test the RFC connection to the target system. Ensure that the connection is successful and that the target system is up and running.
  
  
  
  Review Transport Layer:
  
  Ensure that the transport layer settings are correctly configured and that there are no issues with the transport routes.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to ALE/PI configuration for any specific instructions or troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SALE: ALE Configuration
  SM59: RFC Destinations
  SMQ1/SMQ2: Queue Monitoring
  SLG1: Application Log
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify and resolve the cause of the X4606 error message in your SAP system.