How To Fix DIWP1236 - You cannot remove selected task list from the hierarchy.

SAP Error Message - Details

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 236

• Message text: You cannot remove selected task list from the hierarchy.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1236 - You cannot remove selected task list from the hierarchy. ?

  The SAP error message DIWP1236, which states "You cannot remove selected task list from the hierarchy," typically occurs when you attempt to delete or remove a task list that is still being referenced or is part of a hierarchy in the system. This can happen in various contexts, such as when dealing with task lists in SAP's Project System (PS) or other modules that utilize task lists.
  Causes:
  
  Dependencies: The task list you are trying to remove may have dependencies or relationships with other task lists or objects in the system.
  Active Assignments: The task list might be actively assigned to projects, orders, or other entities, preventing its removal.
  Hierarchy Structure: The task list may be part of a hierarchical structure that requires certain conditions to be met before it can be removed.
  Authorization Issues: Lack of proper authorizations to modify or delete task lists can also lead to this error.
  
  Solutions:
  
  Check Dependencies: Review the task list for any dependencies or references. Ensure that it is not linked to any active projects or orders.
  Remove Assignments: If the task list is assigned to any projects or orders, you will need to remove those assignments before attempting to delete the task list.
  Hierarchy Review: If the task list is part of a hierarchy, ensure that you are following the correct procedure to remove it. You may need to adjust the hierarchy first.
  Authorization Check: Verify that you have the necessary authorizations to delete or modify the task list. If not, contact your system administrator for assistance.
  Use Transaction Codes: Utilize relevant transaction codes (like CATS, CJ20N, etc.) to navigate to the task list and check its status and relationships.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on task lists and their management.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team for further assistance.