How To Fix DIWP1212 - Task list &1 &2 &3 is not hierarchical

SAP Error Message - Details

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 212

• Message text: Task list &1 &2 &3 is not hierarchical

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1212 - Task list &1 &2 &3 is not hierarchical ?

  The SAP error message DIWP1212 indicates that the task list you are trying to work with is not hierarchical. This typically occurs in the context of production planning or project management within SAP, where task lists are expected to have a hierarchical structure.
  Cause:
  
  Non-Hierarchical Structure: The task list you are trying to access or modify does not have a hierarchical structure. This could be due to the way the task list was created or configured.
  Incorrect Task List Type: The task list type you are using may not support hierarchical relationships.
  Data Integrity Issues: There may be issues with the data integrity of the task list, such as missing parent-child relationships.
  
  Solution:
  
  Check Task List Configuration: Review the configuration of the task list to ensure it is set up to be hierarchical. You may need to adjust the settings or create a new task list that adheres to the hierarchical structure.
  Use the Correct Task List Type: Ensure that you are using a task list type that supports hierarchical structures. If necessary, create a new task list with the appropriate type.
  Review Relationships: Check the relationships between tasks in the list. Ensure that parent-child relationships are correctly defined and that there are no orphaned tasks.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on creating and managing hierarchical task lists.
  SAP Notes and Support: If the issue persists, check for any relevant SAP Notes that may address this error. You can also reach out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA01 (Create Routing), CA02 (Change Routing), or CA03 (Display Routing) if you are working with task lists in production planning.
  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 training sessions or documentation on task list management in SAP to better understand the hierarchical structure and its importance in your processes.
  
  By following these steps, you should be able to resolve the DIWP1212 error and ensure that your task lists are properly structured.