How To Fix WPS01128 - Task list key &1 / ext. ID &2: Missing equipment in task list attributes

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 128

• Message text: Task list key &1 / ext. ID &2: Missing equipment in task list attributes

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPS01128 - Task list key &1 / ext. ID &2: Missing equipment in task list attributes ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPS01128 Task list key &1 / ext. ID &2: Missing equipment in task list attributes
  
  Meaning / Cause:
  This error occurs when you try to use or process a task list (maintenance task list, production task list, etc.) that references an equipment, but the equipment is not maintained or assigned in the task list attributes. Essentially, the system expects an equipment number to be specified in the task list header or attributes, but it is missing.
  
  Task list key &1: The identifier of the task list.
  External ID &2: The equipment number or external ID expected but missing.
  
  This typically happens in maintenance task lists (e.g., maintenance plans, maintenance orders) where the task list is supposed to be linked to a specific equipment, but the equipment field is empty or not maintained.
  
  When does it occur?
  
  When creating or changing a maintenance order or maintenance plan that references a task list.
  When the task list is assigned to an equipment but the equipment is not maintained in the task list header.
  When the system tries to find equipment information in the task list attributes but cannot find it.
  
  
  Solution / How to fix:
  
  
  Check the Task List Header:
  
  Go to transaction IA05 (Change Task List) or IA06 (Display Task List).
  Enter the task list key &1.
  Check the Task List Header data.
  Verify if the Equipment field is filled correctly.
  If the equipment is missing, enter the correct equipment number &2.
  
  
  
  Maintain Equipment in Task List Attributes:
  
  In the task list header, ensure that the equipment is assigned if the task list is equipment-specific.
  Save the changes.
  
  
  
  Check Task List Usage:
  
  If the task list is intended to be general (not equipment-specific), ensure that the system or process does not expect an equipment assignment.
  If the task list is equipment-specific, always maintain the equipment in the header.
  
  
  
  Check Maintenance Plan or Order:
  
  If the error occurs during maintenance plan or order creation, verify that the equipment assigned to the order matches the equipment in the task list.
  Adjust the equipment assignment accordingly.
  
  
  
  Consistency Check:
  
  Run consistency checks or use transaction IL05 (Display Functional Location) or IE05 (Display Equipment) to verify equipment master data.
  Ensure equipment exists and is active.
  
  
  
  
  Additional Information:
  
  Task Lists in SAP PM (Plant Maintenance) can be general, functional location-specific, or equipment-specific.
  Equipment-specific task lists require the equipment number to be maintained in the task list header.
  This error is a preventive check to avoid inconsistencies between task lists and equipment assignments.
  If you are using external IDs or interfaces, ensure that the equipment numbers are correctly mapped and maintained.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WPS01128 Task list key &1 / ext. ID &2: Missing equipment in task list attributes
  
  
  Cause
  Equipment number missing in task list header attributes for an equipment-specific task list
  
  
  Solution
  Maintain the equipment number in the task list header (transaction IA05)
  
  
  Related Transactions
  IA05 (Change Task List), IA06 (Display Task List), IE05 (Display Equipment), IL05 (Display Functional Location)
  
  
  
  
  If you need further assistance or specific steps for your SAP version, please let me know!