How To Fix DIWP1203 - You cannot remove the top task list in the hierarchy from the tree

DIWP1203 - Overview

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 203

• Message text: You cannot remove the top task list in the hierarchy from the tree

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1203 - You cannot remove the top task list in the hierarchy from the tree ?

  The SAP error message DIWP1203, which states "You cannot remove the top task list in the hierarchy from the tree," typically occurs when you attempt to delete or remove a task list that is at the top level of a hierarchy in the SAP system. This error is designed to prevent the accidental deletion of critical task lists that may be essential for the structure and functionality of the system.
  
  Cause:
  
  Top-Level Task List: The task list you are trying to remove is the top-level task list in the hierarchy. SAP does not allow the deletion of this level to maintain the integrity of the task list structure.
  Hierarchy Structure: The task list may have subordinate task lists or tasks that depend on it, making it essential for the overall hierarchy.
  
  
  Solution:
  
  Check Hierarchy: Review the hierarchy of task lists to ensure that you are not trying to delete a top-level task list. You can