How To Fix COM_PRODUCT_BOM101 - Item number &1 already contained in overview

COM_PRODUCT_BOM101 - Overview

• Message type: E = Error

• Message class: COM_PRODUCT_BOM - Error Messages in Development Class of Same Name

• Message number: 101

• Message text: Item number &1 already contained in overview

What causes this issue?

You have entered an item number (&V1&) for component &V2& which already
occurs in the overview. The item number must be unique.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose another item number.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

COM_PRODUCT_BOM101 - Details

• The SAP error message COM_PRODUCT_BOM101 indicates that an item number is already present in the Bill of Materials (BOM) overview. This typically occurs when you attempt to add an item to a BOM that is already included in that BOM.
  
  Cause:
  
  Duplicate Entry: The most common cause is that the item you are trying to add is already listed in the BOM.
  Incorrect Data Entry: There may have been a mistake in data entry, leading to an attempt to add the same item multiple times.
  System Configuration: In some cases, system settings or configurations may allow for duplicate entries, but the error is triggered due to validation rules.
  
  
  Solution:
  
  Check BOM Overview: Review the BOM overview to confirm whether the item is already included. You can do this by navigating to the BOM transaction (e.g., CS03 for display) and checking the item list.
  Remove Duplicate: If the item is indeed listed, you do not need to add