How To Fix 29771 - Standard BOM & & & already exists

29771 - Overview

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 771

• Message text: Standard BOM & & & already exists

What causes this issue?

You want to create a standard BOM for standard object &V1& with usage
&V2&.
A BOM already exists for this standard object and usage. You cannot
extend a standard a standard BOM.

How to fix this error?

Check whether the standard BOM is suitable for standard object &V1& and
usage &V2&. If it is not, you need to create the BOM for another
standard object.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29771 - Standard BOM & & & already exists ?

  The SAP error message 29771, which states "Standard BOM & & & already exists," typically occurs when you are trying to create a new Bill of Materials (BOM) in SAP, but a standard BOM with the same key already exists in the system. This can happen in various scenarios, such as when you are trying to create a BOM for a material that already has a standard BOM defined.
  
  Cause:
  
  Duplicate BOM Entry: The most common cause is that a standard BOM for the specified material already exists in the system.
  Incorrect BOM Type: You may be trying to create a BOM with a type that is already in use for that material.
  Data Entry Error: There may be a mistake in the data you are entering, leading to a conflict with existing records.
  
  
  Solution:
  
  Check Existing BOMs: Before creating a new BOM, check if a standard BOM already exists for the material. You can do