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

DIWP1212 - Overview

• 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.

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

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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