How To Fix /ASU/GENERAL077 - Generated task list not consistent (Node &1 Parent &2 Sibling &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: /ASU/GENERAL -

• Message number: 077

• Message text: Generated task list not consistent (Node &1 Parent &2 Sibling &3)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ASU/GENERAL077 - Generated task list not consistent (Node &1 Parent &2 Sibling &3) ?

  The SAP error message /ASU/GENERAL077 Generated task list not consistent (Node &1 Parent &2 Sibling &3) typically indicates an inconsistency in the task list structure within the SAP system. This error is often encountered in the context of SAP Advanced Planning and Optimization (APO) or similar modules where task lists are used for planning and execution.
  Cause:
  
  
  Inconsistent Data: The error usually arises when there is a mismatch in the hierarchical structure of the task list. This could be due to:
  
  A node (task) being incorrectly linked to its parent or sibling nodes.
  Missing or incorrectly defined relationships between tasks.
  Data corruption or inconsistencies in the underlying database.
  
  
  
  Changes in Task List: If changes were made to the task list (e.g., adding, deleting, or modifying tasks) without properly updating the relationships, this can lead to inconsistencies.
  
  
  System Bugs: Occasionally, bugs in the SAP system or specific versions may lead to this error.
  
  
  Solution:
  
  
  Check Task List Structure: Review the task list structure to ensure that all nodes are correctly linked to their respective parents and siblings. You may need to:
  
  Use transaction codes like /ASU/TSL or similar to analyze the task list.
  Verify the relationships between nodes and ensure they are correctly defined.
  
  
  
  Recreate the Task List: If the task list is severely corrupted, it may be necessary to recreate it from scratch. This involves:
  
  Exporting the necessary data.
  Deleting the existing task list.
  Creating a new task list and importing the data back.
  
  
  
  Use 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 known issues.
  
  
  Consult Documentation: Review the official SAP documentation for the module you are working with to understand the expected structure and relationships within task lists.
  
  
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. Provide them with the error message details and any relevant context.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing task lists in your specific SAP environment.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Check system logs for any additional error messages or warnings that may provide more context about the inconsistency.
  
  By following these steps, you should be able to identify and resolve the inconsistency in the generated task list.