How To Fix WPS01001 - Subordinate task list &1 &2 &3 could not be found

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 001

• Message text: Subordinate task list &1 &2 &3 could not be found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPS01001 - Subordinate task list &1 &2 &3 could not be found ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPS01001 Subordinate task list &1 &2 &3 could not be found
  
  Cause:
  This error occurs when the system tries to find a subordinate task list (a task list that is referenced within a superior or main task list) but cannot locate it in the system. The placeholders &1, &2, &3 typically represent:
  
  &1: Task list group
  &2: Task list group counter (or task list number)
  &3: Task list usage or task list type
  
  The subordinate task list is either missing, deleted, or not properly maintained in the system. This can happen if:
  
  The subordinate task list was never created.
  The subordinate task list was deleted or archived.
  There is a typo or incorrect reference in the superior task list.
  The task list is not released or not valid for the plant or usage.
  
  
  Solution:
  
  
  Check the subordinate task list existence:
  
  Use transaction IA05 or IA06 to search for the subordinate task list using the group, group counter, and usage/type.
  Verify if the task list exists and is valid.
  
  
  
  Create or maintain the subordinate task list:
  
  If the subordinate task list does not exist, create it using transaction IA01 (for equipment task lists) or IA11 (for general maintenance task lists).
  Ensure the task list is released and valid for the plant and usage.
  
  
  
  Correct the reference in the superior task list:
  
  Use transaction IA02 or IA04 to edit the superior task list.
  Check the operations where the subordinate task list is referenced.
  Correct any incorrect group, group counter, or usage values.
  
  
  
  Check authorization and client settings:
  
  Ensure you have the necessary authorization to view or maintain the task lists.
  Verify that you are in the correct client and plant.
  
  
  
  Transport and system consistency:
  
  If the subordinate task list was transported from another system, verify that the transport was successful.
  Check for inconsistencies or missing objects in the system.
  
  
  
  
  Related Information:
  
  Task Lists in SAP PM: Task lists are templates for maintenance tasks and can include operations, components, and sequences. Subordinate task lists allow modularization by referencing other task lists.
  Transactions:
  
  IA01: Create task list
  IA02: Change task list
  IA03: Display task list
  IA05: Find task list by object
  IA06: Find task list by equipment
  
  
  SAP Notes: Check SAP OSS notes for any known bugs or patches related to task list handling.
  User Roles: Ensure users have roles like SAP_PM_MAINTAIN_TASKLIST for task list maintenance.
  
  
  If you provide the exact values for &1, &2, &3, I can help you with more specific guidance.