How To Fix M_OBOM_WB_GNRL045 - For the first entry a complete BOM explosion is necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: M_OBOM_WB_GNRL - OEWB: allgemeine Fehlermeldungen

• Message number: 045

• Message text: For the first entry a complete BOM explosion is necessary

What causes this issue?

Parameter OBOM_WB_P_FIXC is set and, at the same time, an explosion
level has been set for processing BOMs.

System Response

The BOM must be fully exploded to be fixed completely. This occurs
automatically in the background.

How to fix this error?

Complete explosion is not required when you access this function again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M_OBOM_WB_GNRL045 - For the first entry a complete BOM explosion is necessary ?

  The SAP error message M_OBOM_WB_GNRL045 indicates that a complete Bill of Materials (BOM) explosion is necessary for the first entry in a specific context, typically when working with BOMs in the SAP system. This error often arises in scenarios where the system requires a detailed breakdown of components for a particular material or assembly, but the necessary data is not available or not fully processed.
  Cause:
  
  Incomplete BOM Data: The BOM for the material may not be fully defined or may be missing components.
  Incorrect BOM Usage: The BOM might not be set up correctly for the intended use (e.g., production, sales).
  Configuration Issues: There may be issues with the configuration of the BOM or the material master data.
  Missing Dependencies: If the BOM has dependencies that are not met, the system may require a complete explosion to resolve them.
  
  Solution:
  
  
  Check BOM Configuration:
  
  Ensure that the BOM is correctly configured and that all components are defined.
  Use transaction code CS03 to display the BOM and verify its structure.
  
  
  
  Perform BOM Explosion:
  
  Manually perform a BOM explosion using transaction code CS11 or CS12 to see if the components are correctly listed.
  If the explosion is successful, it may resolve the issue.
  
  
  
  Review Material Master Data:
  
  Check the material master data for the item in question to ensure that it is correctly set up.
  Use transaction code MM03 to review the material master.
  
  
  
  Check for Dependencies:
  
  If the BOM has dependencies (like alternative components or variants), ensure that these are correctly defined and available.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to BOM management for any specific requirements or configurations that may be necessary.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS03: Display BOM
  CS11: Single-Level BOM Explosion
  CS12: Multi-Level BOM Explosion
  MM03: Display Material Master
  
  
  
  BOM Types: Understand the different types of BOMs (e.g., production BOM, sales BOM) and their specific requirements.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to BOM processing.
  
  
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to view and manipulate BOM data.
  
  
  By following these steps, you should be able to diagnose and resolve the error message M_OBOM_WB_GNRL045 effectively.