How To Fix MILL_OC021 - Planned order & has no component reservations

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_OC - Messages for order combination

• Message number: 021

• Message text: Planned order & has no component reservations

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MILL_OC021 - Planned order & has no component reservations ?

  The SAP error message MILL_OC021 indicates that a planned order does not have any component reservations associated with it. This can occur in the context of production planning and materials management when the system is unable to find the necessary components (materials) that are required for the planned order.
  Causes:
  
  Missing Component Assignment: The planned order may not have components assigned to it in the Bill of Materials (BOM).
  Incorrect BOM: The BOM for the material may not be correctly configured or may not exist.
  No Stock Availability: There may be no stock available for the components required for the planned order.
  Planning Parameters: The planning parameters may not be set correctly, leading to no reservations being created.
  Order Type Configuration: The order type used for the planned order may not be configured to create reservations.
  
  Solutions:
  
  
  Check BOM: Verify that the BOM for the material associated with the planned order is correctly defined and includes all necessary components.
  
  Use transaction code CS03 to display the BOM and ensure all components are listed.
  
  
  
  Check Component Availability: Ensure that the components required for the planned order are available in stock.
  
  Use transaction code MMBE to check stock levels for the components.
  
  
  
  Create Reservations Manually: If necessary, you can create reservations manually for the components using transaction code MB21 (Create Reservation).
  
  
  Review Planning Parameters: Check the planning parameters in the material master to ensure that they are set to allow for component reservations.
  
  Use transaction code MM02 to modify the material master data.
  
  
  
  Check Order Type Settings: Review the configuration of the order type used for the planned order to ensure it is set up to create reservations.
  
  This can be done in the configuration settings under SPRO > Production > Basic Data > Order Types.
  
  
  
  Re-run MRP: If changes have been made to the BOM or stock levels, re-run the Material Requirements Planning (MRP) process to regenerate the planned orders and reservations.
  
  Use transaction code MD02 for single-item planning or MD01 for total planning.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS03: Display BOM
  MMBE: Stock Overview
  MB21: Create Reservation
  MM02: Change Material
  MD02: Single-item MRP
  MD01: Total MRP
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on BOM management, MRP processes, and production order management.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary solutions to resolve it.