How To Fix STEP781 - Create MAT BOM: Header material not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: STEP - ISO 10303 STEP Mapping Messages

• Message number: 781

• Message text: Create MAT BOM: Header material not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message STEP781 - Create MAT BOM: Header material not defined ?

  The SAP error message "STEP781 Create MAT BOM: Header material not defined" typically occurs when you are trying to create a Bill of Materials (BOM) for a material that has not been defined in the system. This error indicates that the system cannot find the header material you are trying to use for the BOM.
  Cause:
  
  Material Not Created: The header material you are trying to use for the BOM has not been created in the system.
  Incorrect Material Type: The material type of the header material may not be allowed for BOM creation.
  Material Status: The material may be in a status that does not allow it to be used in a BOM (e.g., blocked or inactive).
  Incorrect Plant Assignment: The material may not be assigned to the plant you are working with.
  Authorization Issues: The user may not have the necessary authorizations to access the material.
  
  Solution:
  
  
  Check Material Existence:
  
  Go to transaction code MM03 (Display Material) and check if the header material exists in the system.
  If it does not exist, create the material using transaction code MM01 (Create Material).
  
  
  
  Verify Material Type:
  
  Ensure that the material type of the header material is appropriate for BOM creation. You can check this in the material master data.
  
  
  
  Check Material Status:
  
  Ensure that the material is not blocked or inactive. You can check the status in the material master data.
  
  
  
  Plant Assignment:
  
  Verify that the material is assigned to the correct plant. You can check this in the material master data under the plant-specific views.
  
  
  
  Authorization Check:
  
  Ensure that you have the necessary authorizations to create a BOM for the specified material. If not, contact your SAP security administrator.
  
  
  
  Use Correct Transaction:
  
  Make sure you are using the correct transaction for creating the BOM, such as CS01 (Create BOM).
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM01: Create Material
  MM03: Display Material
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  
  
  
  BOM Types: Understand the different types of BOMs (e.g., Material BOM, Equipment BOM, etc.) and ensure you are using the correct type for your needs.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to BOM creation and the error message you are encountering.
  
  
  By following these steps, you should be able to resolve the "STEP781 Create MAT BOM: Header material not defined" error and successfully create your BOM.