How To Fix CX311 - An order BOM already exists for item &

CX311 - Overview

• Message type: E = Error

• Message class: CX - Nachrichten für Konfigurationsprozess

• Message number: 311

• Message text: An order BOM already exists for item &

What causes this issue?

An order BOM already exists for the changed order item. Changes to the
assigned characteristic values for this item do not affect the existing
order BOM.

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?

Call the multilevel processing function for order BOMs for this order
item. To do this, from the SAP Easy Access Menn choose <(>
<<)>LS>Logistics -> Production -> Master Data -> Bills of Material ->
Bill of Material - > Order BOM -> Maintain Multilevel<(><<)>/>. Check
the result, and save the order BOM. The system updates the result to
match the changed data in the order item.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CX311 - An order BOM already exists for item & ?

  The SAP error message CX311 indicates that there is an attempt to create a Bill of Materials (BOM) for an order item that already has an existing BOM. This error typically occurs in the context of production planning and material management when trying to create or modify BOMs for production orders.
  
  Cause:
  
  Existing BOM: The primary cause of this error is that a BOM already exists for the specified order item. SAP does not allow the creation of multiple BOMs for the same item in the same context.
  Incorrect Data Entry: There may be a mistake in the data entry, such as trying to create a BOM for an item that is already linked to another BOM.
  System Configuration: There might be configuration settings in the SAP system that prevent the creation of multiple BOMs for the same item.
  
  
  Solution:
  
  Check Existing BOMs: Verify if a BOM already exists for the specified item. You can do