How To Fix DIWP1245 - Task list &1 &2 &3 is not hierarchical. Dependencies cannot be set

SAP Error Message - Details

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 245

• Message text: Task list &1 &2 &3 is not hierarchical. Dependencies cannot be set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1245 - Task list &1 &2 &3 is not hierarchical. Dependencies cannot be set ?

  The SAP error message DIWP1245 indicates that there is an issue with the task list you are trying to work with. Specifically, it states that the task list is not hierarchical, which means that the system cannot establish dependencies between tasks as expected. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Non-Hierarchical Task List: The task list you are trying to use does not have a hierarchical structure. In SAP, hierarchical task lists allow for parent-child relationships between tasks, which is necessary for setting dependencies.
  Incorrect Task List Type: The task list may be of a type that does not support hierarchical relationships.
  Configuration Issues: There may be configuration settings in the system that prevent the task list from being treated as hierarchical.
  
  Solution:
  
  Check Task List Type: Ensure that the task list you are using is of a type that supports hierarchical structures. You may need to create a new task list or modify the existing one to ensure it is hierarchical.
  Create Hierarchical Structure: If the task list is not hierarchical, you may need to restructure it. This can involve creating parent tasks and sub-tasks to establish the necessary hierarchy.
  Review Dependencies: If you are trying to set dependencies, ensure that you are doing so in a way that is compatible with the task list structure. You may need to adjust how you are defining these dependencies.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on creating and managing hierarchical task lists.
  Check Configuration Settings: If you have access, review the configuration settings related to task lists in your SAP system to ensure they are set up correctly for hierarchical relationships.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on task list management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Training and Documentation: Consider reviewing training materials or documentation related to task list management in SAP to better understand how to create and manage hierarchical task lists.
  
  If the issue persists after trying these solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth assistance.