How To Fix 00688 - Reserved for task handler

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 688

• Message text: Reserved for task handler

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 00688 - Reserved for task handler ?

  The SAP error message "00688 Reserved for task handler" typically indicates an issue related to task handling in the SAP system. This error can occur in various contexts, often related to background processing or task management within the SAP environment.
  Cause:
  
  Task Management Issues: The error may arise when there is a problem with the task handler, which is responsible for managing background tasks in SAP.
  Configuration Problems: Incorrect configuration settings in the SAP system can lead to this error.
  System Resource Limitations: If the system is under heavy load or if there are resource limitations, it may not be able to handle tasks properly.
  Software Bugs: Occasionally, this error can be triggered by bugs in the SAP software or specific transactions.
  
  Solution:
  
  Check System Logs: Review the system logs (transaction SM21) for any related error messages that could provide more context about the issue.
  Monitor Background Jobs: Use transaction SM37 to check the status of background jobs. Look for any jobs that are stuck or have failed.
  Review Configuration: Ensure that the task handler and related configurations are set up correctly. This may involve checking settings in transaction SM50 (Process Overview) or SM66 (Global Process Overview).
  Restart Task Handler: If the task handler is not functioning correctly, you may need to restart it. This can often resolve temporary issues.
  Check System Resources: Ensure that the system has adequate resources (CPU, memory, etc.) to handle the tasks being processed.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SM37 (Job Monitoring), SM50 (Process Overview), and SM66 (Global Process Overview).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation related to task management and background processing for best practices and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the "00688 Reserved for task handler" error in your SAP system.