How To Fix SO099 - *** Dispatcher ***

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 099

• Message text: *** Dispatcher ***

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 SO099 - *** Dispatcher *** ?

  The SAP error message SO099, which is related to the dispatcher, typically indicates that there is an issue with the SAP system's ability to process requests. This error can arise from various underlying causes, and understanding these can help in troubleshooting and resolving the issue.
  Causes of SO099 Error
  
  
  Resource Limitations: The dispatcher may be unable to allocate sufficient resources (CPU, memory, etc.) to handle incoming requests, leading to performance issues.
  
  
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to dispatcher errors. This includes settings related to the number of work processes, memory allocation, or network settings.
  
  
  High Load: A sudden spike in user activity or background jobs can overwhelm the dispatcher, causing it to fail to process requests.
  
  
  Network Issues: Problems with network connectivity can prevent the dispatcher from communicating effectively with application servers or databases.
  
  
  System Bugs: Occasionally, bugs in the SAP software can lead to dispatcher errors.
  
  
  Solutions to SO099 Error
  
  
  Check System Resources: Monitor the system's CPU and memory usage. If resources are maxed out, consider increasing the hardware capacity or optimizing existing processes.
  
  
  Review Configuration Settings: Ensure that the SAP instance is configured correctly. Check the number of work processes and adjust them if necessary. You can do this in the SAP profile parameters.
  
  
  Analyze Workload: Use transaction codes like ST03N (Workload Analysis) to analyze the workload on the system. Identify any long-running jobs or transactions that may be causing the issue.
  
  
  Restart the Dispatcher: Sometimes, simply restarting the dispatcher can resolve temporary issues. This can be done through the SAP Management Console (SAP MMC) or using transaction SM51.
  
  
  Check for Network Issues: Ensure that there are no network connectivity issues between the application server and the database or other components.
  
  
  Review SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address known issues related to the dispatcher.
  
  
  Consult Logs: Review the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages or warnings that could provide more context about the issue.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for further assistance.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM51 (to view instances), ST03N (to analyze workload), and SM21 (to check system logs).
  SAP Notes: Regularly check for updates and patches from SAP that may address known issues with the dispatcher.
  Performance Monitoring: Implement regular performance monitoring to proactively identify and address potential issues before they lead to errors.
  
  By following these steps, you should be able to diagnose and resolve the SO099 dispatcher error in your SAP system.