How To Fix OB439 - Material &1 not assigned to plant &2

SAP Error Message - Details

• Message type: E = Error

• Message class: OB - IS-OIL Downstream TDP messages

• Message number: 439

• Message text: Material &1 not assigned to plant &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OB439 - Material &1 not assigned to plant &2 ?

  The SAP error message OB439, which states "Material &1 not assigned to plant &2," typically occurs when you are trying to perform a transaction that requires a specific material to be assigned to a particular plant, but the system cannot find the necessary assignment. This can happen in various scenarios, such as when creating a purchase order, sales order, or during inventory management processes.
  Cause:
  
  Material Not Created for Plant: The material has not been created or extended for the specified plant in the material master.
  Plant Not Active: The plant may not be active or may have been deactivated in the system.
  Incorrect Plant/Material Combination: The combination of the material and plant being used in the transaction is incorrect or does not exist.
  Missing Data in Material Master: Required data for the material in the context of the specified plant is missing or incomplete.
  
  Solution:
  To resolve the OB439 error, you can follow these steps:
  
  
  Check Material Master:
  
  Go to transaction code MM03 (Display Material) and enter the material number (&1).
  Check if the material is assigned to the specified plant (&2) under the relevant views (e.g., Basic Data, Purchasing, Sales, etc.).
  If the material is not assigned to the plant, you will need to extend the material to the plant.
  
  
  
  Extend Material to Plant:
  
  Use transaction code MM01 (Create Material) or MM02 (Change Material).
  Select the appropriate views and enter the plant number to extend the material to that plant.
  Ensure that all necessary data is filled out correctly.
  
  
  
  Check Plant Status:
  
  Verify that the plant is active and not marked for deletion. You can check this in the plant master data using transaction code OX10 (Plant Maintenance).
  
  
  
  Review Transaction Data:
  
  Ensure that the transaction you are trying to perform is using the correct material and plant combination. Double-check for any typos or incorrect entries.
  
  
  
  Consult with SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  OX10: Plant Maintenance
  
  
  Material Master Views: Ensure that the relevant views for the material are maintained for the specific plant.
  User Authorizations: Ensure that you have the necessary authorizations to view or change material master data.
  
  By following these steps, you should be able to resolve the OB439 error and successfully complete your transaction.