How To Fix MILL_PC172 - PB not at top level; proposal of actual quantity not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_PC - Mill: Message Pool for Confirmations

• Message number: 172

• Message text: PB not at top level; proposal of actual quantity not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MILL_PC172 - PB not at top level; proposal of actual quantity not possible ?

  The SAP error message "MILL_PC172 PB not at top level; proposal of actual quantity not possible" typically occurs in the context of production planning and control, particularly when dealing with production orders or process orders in the SAP system. This error indicates that the system is unable to propose an actual quantity for a production order because the production batch (PB) is not at the top level of the bill of materials (BOM) or production structure.
  Causes:
  
  Incorrect BOM Structure: The production batch may not be correctly defined in the BOM, or the BOM may not be structured properly.
  Batch Management Issues: If batch management is enabled, the system may require that the batch be at the top level to propose quantities.
  Order Status: The production order may be in a status that does not allow for quantity proposals.
  Missing Master Data: There may be missing or incorrect master data related to materials, production versions, or routing.
  
  Solutions:
  
  Check BOM Structure: Verify that the BOM is correctly structured and that the production batch is defined at the top level. You can do this by navigating to the BOM in the SAP system and ensuring that the hierarchy is correct.
  Review Production Order: Check the status of the production order. Ensure that it is in a status that allows for quantity proposals (e.g., not completed or closed).
  Batch Management Settings: If batch management is being used, ensure that the batch is correctly assigned and that it meets the requirements for the production order.
  Master Data Verification: Ensure that all relevant master data (material master, routing, production version) is complete and accurate. You may need to update or correct any discrepancies.
  Consult Documentation: Review SAP documentation or help resources for specific details related to the error message and its context.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as CS03 (Display BOM), CO03 (Display Production Order), or MM03 (Display Material) to investigate the issue further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to perform actions related to production orders and BOMs.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.