How To Fix WPS01115 - Parent task list, key &1 / ext. ID &2 already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 115

• Message text: Parent task list, key &1 / ext. ID &2 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPS01115 - Parent task list, key &1 / ext. ID &2 already exists ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPS01115 - Parent task list, key &1 / ext. ID &2 already exists
  
  Cause:
  This error occurs when you try to create or copy a parent task list with a key and external ID that already exist in the system. In SAP Plant Maintenance (PM) or Production Planning (PP), task lists are used to define sequences of operations or maintenance tasks. Each task list is uniquely identified by a combination of:
  
  Task list type
  Group (key)
  Group counter (external ID)
  
  If you attempt to create a new parent task list with the same key and external ID as an existing one, the system throws this error to prevent duplicate entries.
  
  Explanation:
  
  Parent task list: A task list that can have multiple sub-task lists or operations.
  Key &1: The task list group or key you are trying to create.
  Ext. ID &2: The external ID or group counter for the task list.
  
  The system enforces uniqueness for these identifiers to maintain data integrity.
  
  Solution:
  
  
  Check Existing Task Lists
  
  Use transaction codes like IA05 (Display Task List) or IA06 (Change Task List) to verify if a task list with the same key and external ID already exists.
  
  
  Use a Different Key or External ID
  
  If you want to create a new task list, choose a unique combination of key and external ID that does not exist in the system.
  
  
  Copy Task List Correctly
  
  If you are copying a task list, ensure you change the key or external ID during the copy process to avoid duplication.
  
  
  Delete or Archive Unused Task Lists
  
  If the existing task list is obsolete and no longer needed, consider deleting or archiving it (if your business process allows) before creating a new one with the same key.
  
  
  Check Customizing Settings
  
  Sometimes, the number range or key assignment for task lists might be incorrectly configured, causing conflicts. Verify the configuration in SPRO under:
  
  Plant Maintenance and Customer Service ? Maintenance Processing ? Task Lists ? Define Task List Types and Number Ranges.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  IA05 – Display Task List
  IA06 – Change Task List
  IA01 – Create Task List
  IA02 – Change Task List
  IA03 – Display Task List
  
  
  
  SAP Notes:
  
  Check SAP Notes related to task list management for any known issues or patches.
  
  
  Task List Types:
  
  Different task list types (e.g., Equipment task lists, Functional location task lists, General task lists) have their own numbering and key assignment rules.
  
  
  Number Ranges:
  
  Ensure number ranges for task lists are properly maintained to avoid overlaps.
  
  
  
  If you provide the exact transaction or scenario where this error occurs, I can help with more specific guidance.