How To Fix WPS01132 - Superordinate t.l. &1 / &2 and subor. t.l. &3 / &4: Diff. planning plants

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 132

• Message text: Superordinate t.l. &1 / &2 and subor. t.l. &3 / &4: Diff. planning plants

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPS01132 - Superordinate t.l. &1 / &2 and subor. t.l. &3 / &4: Diff. planning plants ?

  SAP Error Message:
  
  WPS01132
  
  Text: Superordinate t.l. &1 / &2 and subor. t.l. &3 / &4: Diff. planning plants
  
  Meaning / Cause
  This error occurs during the processing of a work breakdown structure (WBS) or network where a superordinate task list (t.l.) and a subordinate task list belong to different planning plants. In SAP, when you assign task lists in a hierarchical structure (e.g., a main task list with sub-task lists), all task lists involved must belong to the same planning plant.
  
  Superordinate task list: The higher-level task list in the hierarchy.
  Subordinate task list: The lower-level task list assigned under the superordinate one.
  Planning plant: The plant where the task list is created and maintained.
  
  The system checks the planning plant of both task lists and throws this error if they differ.
  
  When does it occur?
  
  When creating or changing a task list hierarchy (e.g., in transaction IA05, IA06, or during network/task list assignment).
  When assigning a sub-task list to a main task list that belongs to a different planning plant.
  During project system (PS) or maintenance order processing where task lists are linked.
  
  
  Solution / How to fix
  
  
  Check the planning plants of the task lists:
  
  Use transaction IA03 (Display Task List) or IA05 (Change Task List) to check the planning plant of both the superordinate and subordinate task lists.
  
  
  
  Ensure both task lists belong to the same planning plant:
  
  If they differ, you need to either:
  
  Use a subordinate task list from the same planning plant as the superordinate task list.
  Or create a new task list in the correct planning plant.
  
  
  
  
  
  Adjust the task list assignment:
  
  Remove the subordinate task list from the superordinate task list if it belongs to a different plant.
  Assign a correct subordinate task list from the same plant.
  
  
  
  If cross-plant assignment is required:
  
  SAP standard does not allow cross-plant task list hierarchies.
  You may need to redesign your task list structure or use other methods (e.g., separate task lists per plant and link them at a higher project level).
  
  
  
  
  Additional Information
  
  Planning Plant is a key organizational unit in SAP Production Planning (PP) and Plant Maintenance (PM).
  Task lists are plant-specific because they contain operations, work centers, and resources that are plant-dependent.
  This error enforces data consistency and prevents incorrect planning or execution.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WPS01132
  
  
  Cause
  Superordinate and subordinate task lists belong to different planning plants.
  
  
  Effect
  Task list hierarchy cannot be created or saved.
  
  
  Solution
  Use task lists from the same planning plant; adjust assignments accordingly.
  
  
  SAP Transactions
  IA03, IA05, IA06 (Task list display/change), CJ20N (Project Builder)
  
  
  
  
  If you need further help, please provide the transaction or process where the error occurs, and the task list numbers/plants involved.