How To Fix CONV199 - Warning when changing the BOM (transformation matrix)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 199

• Message text: Warning when changing the BOM (transformation matrix)

Same as CONV198, just substitute "error" for warning

What causes this issue?

A warning 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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CONV199 - Warning when changing the BOM (transformation matrix) ?

  The SAP error message CONV199 is a warning that typically occurs when there are issues related to the conversion of units of measure or when there are inconsistencies in the Bill of Materials (BOM) during a change or update. This warning is particularly relevant when dealing with the transformation matrix, which is used to convert quantities between different units of measure.
  Cause of CONV199 Warning
  
  
  Unit of Measure Issues: The warning may arise if there are discrepancies in the units of measure defined in the BOM. For example, if the base unit of measure for a component does not match the unit of measure used in the BOM.
  
  
  Inconsistent Data: If the data in the BOM is inconsistent or if there are missing entries in the transformation matrix, this can trigger the warning.
  
  
  Conversion Factors: If the conversion factors between different units of measure are not properly defined or if they are incorrect, this can lead to the CONV199 warning.
  
  
  Material Master Data: Issues with the material master data, such as incorrect unit definitions or missing information, can also cause this warning.
  
  
  Solution to CONV199 Warning
  
  
  Check Unit of Measure: Review the units of measure used in the BOM and ensure they are consistent with the material master data. Make sure that the base unit of measure is correctly defined.
  
  
  Review Transformation Matrix: Check the transformation matrix for the materials involved. Ensure that all necessary conversion factors are defined and that they are accurate.
  
  
  Update BOM: If there are inconsistencies in the BOM, consider updating it to reflect the correct units of measure and quantities.
  
  
  Material Master Review: Verify the material master data for the components in the BOM. Ensure that all relevant fields are filled out correctly, especially those related to units of measure.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling BOMs and unit conversions.
  
  
  Testing: After making changes, test the BOM changes in a development or test environment before applying them to production to ensure that the warning does not reoccur.
  
  
  Related Information
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the CONV199 warning. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) to manage BOMs effectively.
  
  
  Unit of Measure Configuration: Review the configuration settings for units of measure in the SAP system to ensure they are set up correctly.
  
  
  Training and Documentation: Consider training for users who frequently work with BOMs and material master data to minimize the occurrence of such warnings in the future.
  
  
  By addressing the underlying causes and following the suggested solutions, you can effectively manage and resolve the CONV199 warning in SAP.