How To Fix WPS01123 - Superordinate task list key &1 / ext. ID &2: Invalid plant &3

SAP Error Message - Details

• Message type: E = Error

• Message class: WPS01 - Revision Planning - Task List Hierarchy

• Message number: 123

• Message text: Superordinate task list key &1 / ext. ID &2: Invalid plant &3

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPS01123 - Superordinate task list key &1 / ext. ID &2: Invalid plant &3 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPS01123 Superordinate task list key &1 / ext. ID &2: Invalid plant &3
  
  Meaning / Cause:
  This error occurs when you try to assign or reference a superordinate task list (a higher-level task list that contains other task lists as subordinates) with a specific key and external ID, but the plant specified (&3) is not valid or does not exist in the system for that task list.
  In other words, the system cannot find or recognize the plant associated with the superordinate task list you are trying to use. This could be due to:
  
  The plant does not exist in the system.
  The plant is not assigned or linked to the task list.
  There is a mismatch between the plant assigned to the superordinate task list and the plant you are trying to use.
  Data inconsistency or incorrect entry in the task list or plant master data.
  
  
  When does it occur?
  
  When creating or changing a task list that references a superordinate task list.
  When assigning a plant to a task list or during task list validation.
  During task list upload or migration if plant data is incorrect.
  When using external IDs for task lists and the plant does not match.
  
  
  Solution / How to fix:
  
  
  Check Plant Master Data:
  
  Verify that the plant (&3) exists in the system (transaction OX10).
  Ensure the plant is active and correctly maintained.
  
  
  
  Check Task List Data:
  
  Use transaction IA05 or IA06 to display the superordinate task list with key &1 and external ID &2.
  Verify the plant assigned to this task list.
  Ensure the plant you are trying to assign or use matches the plant maintained in the superordinate task list.
  
  
  
  Correct Plant Assignment:
  
  If the plant is incorrect or missing in the superordinate task list, correct it by changing the task list (transaction IA02).
  Assign the correct plant or create the task list for the correct plant.
  
  
  
  Check for Data Consistency:
  
  If the task list was uploaded or migrated, check the source data for correctness.
  Re-upload or correct the data if necessary.
  
  
  
  Cross-check External ID:
  
  If using external IDs, ensure that the external ID &2 corresponds correctly to the task list key &1 and plant &3.
  
  
  
  Authorization Check:
  
  Ensure you have the necessary authorizations to access or modify the plant and task list data.
  
  
  
  
  Additional Information:
  
  Task Lists in SAP: Task lists are used in Plant Maintenance (PM) and Production Planning (PP) to define sequences of operations or maintenance tasks.
  Superordinate Task List: A task list that contains other task lists as subordinates, used for hierarchical structuring.
  Plant: Organizational unit in SAP representing a manufacturing location or maintenance site.
  Transactions:
  
  IA05 - Display Task List
  IA06 - Display Task List (General)
  IA02 - Change Task List
  OX10 - Maintain Plants
  
  
  
  
  Summary:
  The error WPS01123 indicates a mismatch or invalid plant assignment for a superordinate task list. Verify the plant exists and matches the task list data, then correct the plant assignment in the task list or master data accordingly.
  
  If you need further assistance, please provide the exact task list key, external ID, and plant code you are working with.