How To Fix WPS01009 - Hierarchical task lists are ignored for equipment &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 009

• Message text: Hierarchical task lists are ignored for equipment &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPS01009 - Hierarchical task lists are ignored for equipment &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPS01009 - Hierarchical task lists are ignored for equipment &1
  
  Cause:
  This warning message occurs when you try to assign or use a hierarchical task list for an equipment in a maintenance order or maintenance plan, but SAP does not support hierarchical task lists for equipment objects.
  
  Hierarchical task lists are typically used for functional locations, not for equipment.
  Equipment can only have single-level task lists assigned.
  When a hierarchical task list is assigned or referenced for equipment, SAP ignores the hierarchy and only processes the single-level task list.
  
  
  Explanation:
  
  Task lists in SAP Plant Maintenance (PM) can be either:
  
  Single-level task lists (simple list of operations)
  Hierarchical task lists (task lists with sub-assemblies or nested operations)
  
  
  Hierarchical task lists are designed to represent complex structures, which align better with functional locations (which represent physical or logical locations in a plant).
  Equipment, being a specific physical object, does not support hierarchical task lists because the system expects a flat list of operations for maintenance tasks on equipment.
  
  
  Solution:
  
  Use single-level task lists for equipment.
  If you need to use hierarchical task lists, assign them to the functional location instead of the equipment.
  Review the task list assignment in the maintenance order or maintenance plan:
  
  If the equipment has a hierarchical task list assigned, replace it with a single-level task list.
  Alternatively, assign the hierarchical task list to the functional location linked to the equipment.
  
  
  Check the task list type and ensure it matches the object type (equipment or functional location).
  
  
  Related Information:
  
  Transaction codes:
  
  IA05 / IA06: Create/Change Equipment task lists
  IA01 / IA02: Create/Change Equipment master data
  IA31 / IA32: Create/Change Functional Location task lists
  IW31 / IW32: Create/Change Maintenance Orders
  
  
  SAP Notes:
  
  Check SAP Notes related to task list assignment and hierarchical task lists for equipment.
  
  
  Configuration:
  
  Task list usage and assignment rules are defined in the Plant Maintenance customizing.
  
  
  Documentation:
  
  SAP Help Portal: Task Lists in Plant Maintenance
  SAP PM user guides and training materials
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message
  WPS01009 - Hierarchical task lists are ignored for equipment &1
  
  
  Cause
  Hierarchical task lists are not supported for equipment objects; only single-level task lists are valid.
  
  
  Solution
  Use single-level task lists for equipment or assign hierarchical task lists to functional locations instead.
  
  
  Related Info
  Task list transactions (IA05, IA31), SAP Notes, PM customizing
  
  
  
  
  If you need help identifying which task list is assigned or how to convert a hierarchical task list to a single-level one, please let me know!