How To Fix DIWP1204 - Plant of all task lists for the hierarchy must be &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 204

• Message text: Plant of all task lists for the hierarchy must be &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1204 - Plant of all task lists for the hierarchy must be &1 ?

  The SAP error message DIWP1204 typically indicates an issue related to the plant assignment in task lists within the SAP system. This error occurs when the system expects a specific plant assignment for all task lists in a given hierarchy, but it finds that the assignment is either missing or incorrect.
  Cause:
  
  Missing Plant Assignment: The task lists in the hierarchy do not have a plant assigned, or the assigned plant does not match the expected value.
  Incorrect Hierarchy Structure: The hierarchy structure may not be set up correctly, leading to inconsistencies in plant assignments.
  Data Inconsistencies: There may be inconsistencies in the data related to task lists and their associated plants.
  
  Solution:
  
  
  Check Task List Assignments:
  
  Go to the relevant transaction (e.g., IA05 for displaying task lists) and check the task lists in the hierarchy.
  Ensure that each task list has the correct plant assigned.
  
  
  
  Update Plant Assignments:
  
  If any task lists are missing the plant assignment, update them to include the correct plant.
  You can do this in the task list maintenance transaction (e.g., IA01 for creating or IA02 for changing task lists).
  
  
  
  Review Hierarchy Structure:
  
  Ensure that the hierarchy structure is correctly defined and that all task lists are properly linked to the expected plant.
  If necessary, adjust the hierarchy to ensure that it aligns with the plant assignments.
  
  
  
  Data Consistency Check:
  
  Run any relevant reports or transactions to check for data consistency in task lists and plants.
  Correct any discrepancies found during this check.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on task list management and plant assignments.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IA01 (Create Task List), IA02 (Change Task List), IA05 (Display Task List), and IL01 (Create Functional Location) for managing task lists and their assignments.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to make changes to task lists and plant assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the relevant module (e.g., Plant Maintenance or Production Planning) for further assistance.