How To Fix RT491 - Client &1 queue &2 has not been processed for &3 days

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 491

• Message text: Client &1 queue &2 has not been processed for &3 days

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT491 - Client &1 queue &2 has not been processed for &3 days ?

  The SAP error message RT491 indicates that a specific client queue has not been processed for a certain number of days. This message typically arises in the context of SAP's application server and can be related to various issues, such as performance problems, configuration issues, or system errors.
  Cause:
  
  Processing Delays: The queue may not be processed due to system performance issues, such as high load or resource contention.
  Configuration Issues: Incorrect configuration of the queue or the related processing settings can lead to delays.
  Errors in the Queue: There may be errors in the messages or data within the queue that prevent processing.
  System Downtime: The system may have experienced downtime or interruptions that affected the processing of the queue.
  Lack of Resources: Insufficient system resources (CPU, memory, etc.) can lead to delays in processing.
  
  Solution:
  
  Check Queue Status: Use transaction codes like SMQ1 (for outbound queues) or SMQ2 (for inbound queues) to check the status of the queue and identify any stuck messages.
  Analyze Logs: Review the application logs and system logs (transaction SM21) for any errors or warnings that might indicate why the queue is not being processed.
  Restart Processing: If the queue is stuck, you may need to manually restart the processing of the queue. This can often be done by reprocessing the messages in the queue.
  Check Configuration: Ensure that the configuration settings for the queue and the related processing are correct. This may involve checking settings in transaction SPRO or other relevant configuration transactions.
  Monitor System Performance: Use transaction ST03N or ST06 to monitor system performance and identify any bottlenecks that may be affecting processing.
  Increase Resources: If resource contention is identified, consider increasing system resources or optimizing existing processes to improve performance.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address known issues related to this error message.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SMQ1, SMQ2, SM21, ST03N, and ST06.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you suspect a bug or require deeper analysis.
  Documentation: Review SAP documentation related to queue processing and troubleshooting for additional insights and best practices.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the RT491 error message in SAP.