How To Fix 29721 - No BOM exists for class/usage

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 721

• Message text: No BOM exists for class/usage

What causes this issue?

You want to allocate a BOM (for example, a material BOM) from the plant
you entered on the initial screen to an additional plant.
However, the plant you want to allocate the BOM to is the same as the
plant on the initial screen.

How to fix this error?

Please correct your entry in the <LS>Plant</> field.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29721 - No BOM exists for class/usage ?

  The SAP error message "29721 No BOM exists for class/usage" typically occurs when you are trying to access a Bill of Materials (BOM) for a material that does not have a BOM defined for the specified class and usage. This can happen in various scenarios, such as during production planning, material requirements planning, or when trying to create a production order.
  Cause:
  
  Missing BOM: The most common cause is that there is no BOM created for the material in the specified usage and class.
  Incorrect Material Type: The material type may not be configured to use BOMs.
  Incorrect Class/Usage: The class or usage specified in the BOM search may not match any existing BOMs.
  Data Inconsistency: There may be inconsistencies in the master data that prevent the system from finding the BOM.
  
  Solution:
  
  
  Create a BOM: If a BOM does not exist for the material, you need to create one. You can do this using transaction code CS01 (Create BOM).
  
  Ensure you select the correct material, plant, and usage when creating the BOM.
  
  
  
  Check Existing BOMs: Use transaction code CS03 (Display BOM) to check if a BOM exists for the material in the specified class and usage.
  
  If a BOM exists but is not being found, verify the class and usage settings.
  
  
  
  Verify Material Master Data: Check the material master data using transaction code MM03 (Display Material) to ensure that the material is set up correctly and is of a type that can have a BOM.
  
  
  Check BOM Usage: Ensure that the BOM usage is correctly defined. BOMs can be created for different usages (e.g., production, engineering, etc.), and you need to ensure you are looking for the correct one.
  
  
  Consult with Configuration: If you suspect that the issue is related to configuration, consult with your SAP configuration team to ensure that the BOM settings are correctly configured for the material type and class.
  
  
  Data Consistency Check: If you suspect data inconsistencies, you may need to run consistency checks or consult with your SAP Basis team to ensure that the database is in a consistent state.
  
  
  Related Information:
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  MM03: Display Material
  
  
  BOM Types: Understand the different types of BOMs (e.g., production BOM, sales BOM) and their usages.
  SAP Documentation: Refer to SAP Help documentation for detailed information on BOM management and troubleshooting.
  
  By following these steps, you should be able to resolve the error message and ensure that the necessary BOM is available for the material in question.