How To Fix 29005 - BOM already exists for this material/plant/usage

29005 - Overview

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 005

• Message text: BOM already exists for this material/plant/usage

What causes this issue?

You want to create a variant of an existing BOM using the material you
have entered (-> Variant BOM).

System Response

The system checks whether:
RESET N1
Variant BOMs are supported (in Customizing, under
<DS:SIMG.SIMG_CFMENUOLPSOS27>Define modification parameters</>
There is already a BOM for the material
You can only create a variant BOM for a material that does <ZH>not</>
yet have a BOM.

How to fix this error?

Check your entries for the material, plant and usage.
See 1.
If maintenance of variant BOMs is set to inactive, contact your system
administrator. The setting may need to be changed.
See 2.
If a BOM already exists for the material you entered in the plant and
with the usage you entered, you can only create a variant for a
different material.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29005 - BOM already exists for this material/plant/usage ?

  The SAP error message 29005, which states "BOM already exists for this material/plant/usage," typically occurs when you attempt to create a Bill of Materials (BOM) for a material that already has an existing BOM for the specified plant and usage. This is a common issue in SAP when managing BOMs, and it can arise in various scenarios, such as during the creation of a new BOM or when trying to modify an existing one.
  
  Cause:
  
  Existing BOM: The primary cause of this error is that there is already a BOM defined for the same material, plant, and usage combination in the system.
  Incorrect Data Entry: Sometimes, the error can occur due to incorrect data entry, such as specifying the wrong plant or usage type.
  Multiple BOMs: If there are multiple BOMs for the same material and plant but with different usages, the system may still prevent the creation of a new BOM if the