How To Fix CN131 - Bill of material is not valid for networks

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 131

• Message text: Bill of material is not valid for networks

What causes this issue?

The status of the bill of material which you have selected for
component allocation, does not allow for networks.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

Choose a different bill of material or change the status of this BOM.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN131 - Bill of material is not valid for networks ?

  The SAP error message CN131, which states "Bill of material is not valid for networks," typically occurs when you are trying to use a Bill of Material (BOM) in a network activity that is not valid or not properly configured. This error can arise in various scenarios, particularly in project systems (PS) or production planning (PP) modules.
  Causes of Error CN131
  
  BOM Status: The BOM may be inactive or not valid for the specific plant or production version you are trying to use.
  BOM Type: The BOM type may not be compatible with the network activity. For example, certain BOM types are designated for specific purposes and may not be usable in a network context.
  Plant Assignment: The BOM may not be assigned to the correct plant or may not exist for the plant associated with the network.
  Validity Dates: The validity dates of the BOM may not cover the date of the network activity.
  Network Configuration: The network itself may not be properly configured to use the BOM, or the network may not be linked to the correct project or order.
  
  Solutions to Error CN131
  
  Check BOM Status: Verify that the BOM is active and valid. You can do this by using transaction code CS03 (Display BOM) and checking the status and validity.
  Verify BOM Type: Ensure that the BOM type is appropriate for the network activity. If necessary, create a new BOM with the correct type.
  Plant Assignment: Confirm that the BOM is assigned to the correct plant. If it is not, you may need to create or modify the BOM for the appropriate plant.
  Check Validity Dates: Ensure that the validity dates of the BOM encompass the date of the network activity. If the BOM is not valid for the required date range, you may need to adjust the dates.
  Review Network Configuration: Check the configuration of the network to ensure it is set up correctly to utilize the BOM. This includes verifying that the network is linked to the correct project and that all necessary components are in place.
  
  Related Information
  
  
  Transaction Codes:
  
  CS03: Display BOM
  CS02: Change BOM
  CS01: Create BOM
  CN21: Create Network
  CN22: Change Network
  CN23: Display Network
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on BOMs and networks in the context of your specific SAP version.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or bugs related to BOMs and networks.
  
  
  User Authorization: Ensure that you have the necessary authorizations to access and modify BOMs and networks.
  
  
  By following these steps, you should be able to identify the cause of the CN131 error and implement the appropriate solution. If the issue persists, consider reaching out to your SAP support team for further assistance.