How To Fix CONV198 - Error while changing the BOM (transformation matrix)

SAP Error Message - Details

• Message type: E = Error

• Message class: CONV - Messages in Connection with the Converter

• Message number: 198

• Message text: Error while changing the BOM (transformation matrix)

What causes this issue?

An error occured while chanigng the transformation matrix of the BOM
item. More information can be found in the application log (transaction
SLG1) under object CAPI.

System Response

The function module &V2& was called by &V3&.
The return value of the function module &V2& was &V1&.

How to fix this error?

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

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 CONV198 - Error while changing the BOM (transformation matrix) ?

  The SAP error message CONV198 typically occurs when there is an issue with the transformation matrix while changing a Bill of Materials (BOM). This error can arise due to various reasons, including inconsistencies in the BOM data, issues with the material master, or problems with the configuration of the transformation matrix itself.
  Causes of CONV198 Error
  
  
  Inconsistent Data: The data in the BOM or the material master may be inconsistent or incomplete, leading to issues when trying to change the BOM.
  
  
  Transformation Matrix Issues: The transformation matrix may not be properly defined or may contain invalid entries that prevent the system from processing the changes.
  
  
  Missing Dependencies: There may be missing dependencies or relationships between the components of the BOM that need to be addressed.
  
  
  Authorization Issues: The user may not have the necessary authorizations to make changes to the BOM or the transformation matrix.
  
  
  System Configuration: There may be configuration issues in the SAP system that affect how BOMs and transformation matrices are handled.
  
  
  Solutions to CONV198 Error
  
  
  Check BOM Data: Review the BOM data for any inconsistencies or missing information. Ensure that all components and their quantities are correctly defined.
  
  
  Validate Transformation Matrix: Check the transformation matrix for any invalid entries or configurations. Ensure that it is correctly set up according to the requirements of the BOM.
  
  
  Review Material Master: Ensure that the material master data for all components in the BOM is complete and accurate. This includes checking for valid material types and statuses.
  
  
  Check Authorizations: Verify that the user has the necessary authorizations to change the BOM and transformation matrix. If not, contact your SAP security administrator to obtain the required permissions.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  
  
  Debugging: If the issue persists, consider using the SAP debugging tools to trace the error and identify the root cause. This may require assistance from a technical consultant.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error and the steps you have taken to troubleshoot it.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) to manage BOMs effectively.
  Documentation: Review SAP documentation related to BOM management and transformation matrices for best practices and guidelines.
  Training: Consider training sessions or workshops on BOM management in SAP to enhance your understanding and skills in handling such issues.
  
  By following these steps, you should be able to identify and resolve the CONV198 error effectively.