How To Fix CPWB423 - Variant BOMs can only be changed in group mode

SAP Error Message - Details

• Message type: E = Error

• Message class: CPWB - General Workbench Messages

• Message number: 423

• Message text: Variant BOMs can only be changed in group mode

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CPWB423 - Variant BOMs can only be changed in group mode ?

  The SAP error message CPWB423, which states "Variant BOMs can only be changed in group mode," typically occurs when you are trying to modify a Variant Bill of Materials (BOM) in a way that is not permitted in the current mode of operation. Variant BOMs are used in SAP to manage different configurations of a product, allowing for flexibility in production.
  Cause:
  The error arises because:
  
  Single Item Mode: You are attempting to change a Variant BOM in single item mode instead of group mode. Variant BOMs require that changes be made in group mode to ensure that all relevant configurations are handled together.
  Incorrect Transaction: You might be using a transaction that does not support the modification of Variant BOMs in the way you are attempting.
  
  Solution:
  To resolve this error, you should switch to group mode when working with Variant BOMs. Here are the steps to do this:
  
  
  Access the Correct Transaction: Make sure you are using the correct transaction code for managing Variant BOMs. The typical transaction code for this is CS02 (Change BOM) or CS03 (Display BOM).
  
  
  Switch to Group Mode:
  
  When you are in the BOM change screen, look for an option to switch to group mode. This is usually found in the menu or as a button on the screen.
  In some cases, you may need to select a specific group of variants to work with.
  
  
  
  Make Your Changes: Once you are in group mode, you should be able to make the necessary changes to the Variant BOM without encountering the error.
  
  
  Save Your Changes: After making the changes, ensure you save your work.
  
  
  Related Information:
  
  Understanding Variant BOMs: Variant BOMs are used in scenarios where products have multiple configurations. They allow for the management of different components based on specific characteristics or options.
  Group Mode vs. Single Item Mode: Group mode allows you to manage multiple variants simultaneously, while single item mode restricts you to one variant at a time.
  SAP Documentation: For more detailed information, refer to the SAP Help Portal or the specific documentation related to BOM management in your version of SAP.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP administrator or support team for further assistance.