How To Fix TN121 - Status of queue reset

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 121

• Message text: Status of queue reset

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 TN121 - Status of queue reset ?

  The SAP error message TN121, which indicates "Status of queue reset," typically relates to issues with the message queue in the SAP system, particularly in the context of the SAP Application Link Enabling (ALE) or the SAP Process Integration (PI) framework. This error can occur when there are problems with the processing of messages in the queue, leading to a reset of the queue status.
  Causes:
  
  Network Issues: Temporary network disruptions can cause messages to fail to be processed, leading to a reset.
  Configuration Errors: Incorrect configuration of the ALE or PI settings can lead to issues in message processing.
  System Performance: High load on the system or performance bottlenecks can cause delays or failures in processing messages.
  Message Format Issues: If the messages being processed do not conform to the expected format, it can lead to errors.
  Transport Layer Issues: Problems in the transport layer, such as issues with the RFC (Remote Function Call) connections, can also lead to this error.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues affecting the communication between systems.
  Review Configuration: Verify the configuration settings for ALE/PI to ensure they are correct. This includes checking partner profiles, logical systems, and distribution models.
  Monitor System Performance: Use transaction codes like ST22 (Dump Analysis) and SM21 (System Log) to check for performance issues or errors in the system.
  Message Monitoring: Use transaction code SLG1 (Application Log) to check for any logs related to the message processing and identify any specific errors.
  Reprocess Messages: If messages are stuck in the queue, you may need to manually reprocess them using transaction code SMQ1 (for outbound queues) or SMQ2 (for inbound queues).
  Check Transport Layer: Ensure that the RFC connections are correctly configured and operational. You can use transaction code SM59 to check the RFC destinations.
  
  Related Information:
  
  
  Transaction Codes:
  
  SMQ1: Monitor outbound queues.
  SMQ2: Monitor inbound queues.
  SLG1: Application log for message processing.
  ST22: Dump analysis for runtime errors.
  SM21: System log for general system messages.
  SM59: RFC destination configuration.
  
  
  
  Documentation: Refer to SAP Help documentation for ALE and PI for detailed configuration and troubleshooting steps.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to TN121.
  
  
  If the problem persists after following these steps, it may be beneficial to engage SAP support for further assistance.