How To Fix /ASU/GENERAL001 - Error when creating unique task list number from number range

SAP Error Message - Details

• Message type: E = Error

• Message class: /ASU/GENERAL -

• Message number: 001

• Message text: Error when creating unique task list number from number range

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ASU/GENERAL001 - Error when creating unique task list number from number range ?

  The SAP error message /ASU/GENERAL001 typically indicates an issue related to the creation of a unique task list number from a number range. This error can occur in various contexts, particularly when working with task lists in SAP's Advanced Planning and Optimization (APO) or other modules that utilize number ranges.
  Cause of the Error
  
  
  Number Range Issues: The most common cause of this error is that the number range defined for the task list is either not set up correctly or has been exhausted. This means that there are no available numbers left in the defined range to assign to a new task list.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to create or access the number range.
  
  
  Configuration Errors: There may be configuration issues in the number range settings or in the task list settings that prevent the system from generating a unique number.
  
  
  System Locking: If the system is locked or if there are ongoing transactions that are using the number range, it may lead to this error.
  
  
  Solution
  To resolve the /ASU/GENERAL001 error, you can take the following steps:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object associated with the task list.
  Check if the number range is defined correctly and if there are available numbers in the range.
  
  
  
  Extend the Number Range:
  
  If the number range is exhausted, you may need to extend it. This can be done in the same SNRO transaction by adjusting the upper limit of the number range.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to create task lists and access the number range. This can be checked with your SAP security team.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to task lists in the relevant module (e.g., APO, PM, etc.) to ensure everything is set up correctly.
  
  
  
  System Locking:
  
  If there are ongoing transactions that might be locking the number range, you may need to wait until those transactions are completed or check for any locks using transaction SM12.
  
  
  
  Consult SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with transaction codes like SNRO for number range management, SM12 for lock entries, and SU53 for authorization checks.
  SAP Documentation: Refer to the official SAP documentation for detailed information on number range management and task list configuration.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the /ASU/GENERAL001 error and implement a solution to resolve it.