How To Fix ARUN_MAIN121 - Production Order &1, item &2 is completely unassigned

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 121

• Message text: Production Order &1, item &2 is completely unassigned

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ARUN_MAIN121 - Production Order &1, item &2 is completely unassigned ?

  The SAP error message ARUN_MAIN121 indicates that a production order item is completely unassigned, meaning that there are no components or resources assigned to that specific item in the production order. This can occur for various reasons, such as incorrect configuration, missing assignments, or issues during the planning phase.
  Cause:
  
  Missing Component Assignment: The production order item does not have any components assigned to it.
  Incorrect Planning: The planning process may not have generated the necessary assignments for the production order.
  Changes in BOM: If there have been changes to the Bill of Materials (BOM) after the production order was created, it may lead to unassigned items.
  Order Deletion or Changes: If the production order was modified or deleted and then recreated, it might not have the necessary assignments.
  Configuration Issues: There may be issues with the configuration of the production order or the material master data.
  
  Solution:
  
  Check Component Assignment: Go to the production order and check if the components are assigned. If not, you can manually assign the necessary components.
  Review BOM: Ensure that the BOM for the material is correctly defined and that it includes all necessary components.
  Recreate Production Order: If the order is significantly misconfigured, consider deleting and recreating the production order to ensure that it pulls the correct assignments from the BOM.
  Check Planning Settings: Review the planning settings and ensure that the production order was created correctly based on the planning run.
  Use Transaction Codes: Use transaction codes like CO02 (Change Production Order) to check and modify the order, or CO03 (Display Production Order) to view the details.
  Consult Documentation: Refer to SAP documentation or consult with your SAP support team for specific configurations related to your environment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO01 (Create Production Order), CO02 (Change Production Order), and CO03 (Display Production Order).
  BOM and Routing: Understand the relationship between BOM, routing, and production orders, as they are critical for proper assignment.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to make changes to production orders and component assignments.
  
  By following these steps, you should be able to resolve the ARUN_MAIN121 error and ensure that your production order is correctly configured with the necessary assignments.