How To Fix BOM104 - BOM category requires alternative BOM 1

SAP Error Message - Details

• Message type: E = Error

• Message class: BOM - BOMs (2)

• Message number: 104

• Message text: BOM category requires alternative BOM 1

What causes this issue?

You have entered an alternative BOM that does not have the value <zh>1
</>. However, at the same time you have entered a BOM category (for
example <zh>order BOM</> or <zh>document structure</>, for which no
alternatives can be created.

System Response

In the <LS>Alternative BOM</> field, the system enters the value "1".

How to fix this error?

Use the alternative BOM value <zh>1</> as proposed by the system, or
enter a different BOM category.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BOM104 - BOM category requires alternative BOM 1 ?

  The SAP error message BOM104 indicates that a Bill of Materials (BOM) category requires an alternative BOM. This typically occurs when you are trying to create or modify a BOM in SAP, and the system expects an alternative BOM to be defined for the specified BOM category.
  Cause:
  
  BOM Category Configuration: The BOM category you are working with is configured to require an alternative BOM. This is often the case in industries where multiple versions of a product are produced, and the system needs to know which alternative BOM to use.
  Missing Alternative BOM: The alternative BOM that is required for the specified BOM category has not been created or is not available in the system.
  Incorrect BOM Type: You may be using the wrong BOM type or category that does not match the requirements of the material you are trying to work with.
  
  Solution:
  
  Create an Alternative BOM: If an alternative BOM is required, you need to create one. You can do this by navigating to the BOM creation transaction (CS01) and specifying the alternative BOM number.
  Check BOM Category Settings: Review the settings for the BOM category in the configuration (transaction code SPRO). Ensure that the settings align with your business requirements and that the alternative BOM is correctly defined.
  Use the Correct BOM Type: Ensure that you are using the correct BOM type that corresponds to the material and its requirements. You can check the BOM type in the material master record.
  Consult Documentation: Refer to SAP documentation or your organization's SAP guidelines for specific instructions on how to handle BOMs and alternative BOMs.
  
  Related Information:
  
  BOM Types: Understand the different types of BOMs (e.g., production BOM, sales BOM, engineering BOM) and their specific requirements.
  Alternative BOMs: Familiarize yourself with how alternative BOMs work in SAP, including how to create and manage them.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide additional guidance related to BOM management.
  User Roles and Authorizations: Ensure that you have the necessary permissions to create or modify BOMs in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in BOM management.