How To Fix UCS0121 - System error while starting task &1; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 121

• Message text: System error while starting task &1; see long text

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE UCS0_SPTA_ERROR_CAUSE OBJECT DOKU ID TX
Error text: &V2&&v3&
Previous message: &V4&

System Response

INCLUDE UCS0_SPTA_ERROR_RESPONSE OBJECT DOKU ID TX

How to fix this error?

INCLUDE UCS0_SPTA_ERROR_REACTION OBJECT DOKU ID TX

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0121 - System error while starting task &1; see long text ?

  The SAP error message UCS0121, which indicates a "System error while starting task &1; see long text," typically arises in the context of background processing or task execution within the SAP system. This error can be caused by various factors, and understanding the underlying cause is essential for resolving the issue.
  Possible Causes:
  
  Configuration Issues: Incorrect configuration settings in the background processing or task management settings can lead to this error.
  Resource Limitations: Insufficient system resources (CPU, memory, etc.) can prevent tasks from starting properly.
  Authorization Problems: The user or process attempting to start the task may lack the necessary authorizations.
  System Bugs: There may be bugs or issues in the specific version of SAP you are using that affect task execution.
  Database Issues: Problems with the database connection or database performance can also lead to this error.
  Transport Issues: If the task is related to a transport request, issues with the transport management system can cause this error.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for background processing and ensure they are set up correctly.
  Monitor System Resources: Use transaction codes like ST02 (Tune Summary) or ST06 (Operating System Monitor) to check for resource bottlenecks. If resources are low, consider optimizing or upgrading your system.
  Review Authorizations: Ensure that the user or process has the necessary authorizations to execute the task. You can use transaction SU53 to analyze authorization issues.
  Check for Notes and Patches: Look for SAP Notes related to this error message in the SAP Support Portal. Applying relevant patches or updates may resolve the issue.
  Database Health Check: Perform a health check on the database to ensure it is functioning correctly. Check for locks, performance issues, or connectivity problems.
  Review Logs: Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages or information that can provide more context about the issue.
  Restart Background Jobs: If the error is related to a specific background job, try restarting the job or the entire background processing system.
  
  Related Information:
  
  SAP Notes: Search for specific SAP Notes that address the UCS0121 error or related issues.
  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 the official SAP documentation for background processing and task management for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.