How To Fix L3634 - Error &1 occurred during call of FB UNIT_CONVERSION_SIMPLE

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 634

• Message text: Error &1 occurred during call of FB UNIT_CONVERSION_SIMPLE

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message L3634 - Error &1 occurred during call of FB UNIT_CONVERSION_SIMPLE ?

  The SAP error message L3634, which states "Error &1 occurred during call of FB UNIT_CONVERSION_SIMPLE," typically arises during unit conversion processes in SAP, particularly when dealing with material management or logistics functions. This error indicates that there was an issue when the system attempted to convert one unit of measure to another using the function module UNIT_CONVERSION_SIMPLE.
  Causes:
  
  Invalid Unit of Measure: The unit of measure being used may not be defined in the system or may not be compatible with the conversion being attempted.
  Missing Conversion Factors: There may be no conversion factors defined between the units of measure involved in the conversion.
  Data Inconsistencies: There could be inconsistencies in the data, such as incorrect material master records or unit of measure settings.
  Configuration Issues: The configuration settings for units of measure in the system may not be set up correctly.
  Custom Code Issues: If there is custom code that calls this function module, there may be issues in the logic or parameters being passed.
  
  Solutions:
  
  Check Unit of Measure: Verify that the units of measure involved in the conversion are correctly defined in the system. You can do this by checking the unit of measure settings in the SAP configuration (transaction code OME1).
  Define Conversion Factors: Ensure that conversion factors between the units of measure are defined. You can do this in the same configuration area.
  Review Material Master Data: Check the material master records to ensure that the units of measure are correctly assigned and that there are no inconsistencies.
  Debugging: If you have access to debugging tools, you can debug the function module call to see what parameters are being passed and where the error occurs.
  Check Custom Code: If there is any custom code that interacts with this function module, review it for potential issues or incorrect parameters.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OMU1 (for unit of measure settings) and MM03 (to view material master data) to investigate further.
  SAP Documentation: Refer to SAP Help documentation for detailed information on unit conversions and related function modules.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after checking these areas, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.