How To Fix XU039 - Error in quantity conversion: conversion ratio is too large

SAP Error Message - Details

• Message type: E = Error

• Message class: XU - Messages for Quantity Conversion at Batch Level (Steel-AI)

• Message number: 039

• Message text: Error in quantity conversion: conversion ratio is too large

What causes this issue?

The system stores the conversion ratio of quantity in base unit of
measure to quantity in unit of entry as a fraction with a five-digit
numerator and denominator.
Therefore, your entry cannot be displayed.

System Response

Quantity conversion has been cancelled

How to fix this error?

Try to enter the quantity in a unit of entry that has a smaller
conversion ratio to the base unit of measure.
Please contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message XU039 - Error in quantity conversion: conversion ratio is too large ?

  The SAP error message XU039: Error in quantity conversion: conversion ratio is too large typically occurs when there is an issue with the conversion of quantities between different units of measure in the system. This error indicates that the conversion ratio defined in the system is too large for the system to handle, which can lead to inaccuracies or overflow errors.
  Causes:
  
  Incorrect Unit of Measure Configuration: The units of measure (UoM) may not be properly defined in the system, leading to an excessively large conversion factor.
  Data Entry Errors: Users may have entered quantities or conversion factors incorrectly, resulting in a ratio that exceeds the allowable limits.
  Inconsistent Master Data: The material master data may have inconsistencies, such as incorrect UoM settings or conversion factors.
  System Limitations: The system may have limitations on the maximum value it can handle for conversion ratios, and the defined ratio exceeds this limit.
  
  Solutions:
  
  
  Check Unit of Measure Settings:
  
  Go to the material master (transaction code MM03) and check the UoM settings for the relevant material.
  Ensure that the base unit of measure and alternative units of measure are correctly defined.
  
  
  
  Review Conversion Factors:
  
  Check the conversion factors defined for the UoMs in the system. You can do this in the transaction code CUNI (Unit of Measure Conversion).
  Ensure that the conversion factors are reasonable and do not exceed the system's limits.
  
  
  
  Correct Data Entry:
  
  Verify the data entry for the transaction that triggered the error. Ensure that the quantities and UoMs are entered correctly.
  If necessary, correct any erroneous entries.
  
  
  
  Check Material Master Data:
  
  Review the material master data for any inconsistencies or errors related to UoM and conversion factors.
  Make necessary adjustments to ensure consistency.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on configuration.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that quantities are being converted correctly.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  CUNI: Maintain Units of Measure
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on unit of measure configuration and conversion factors.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be necessary to involve your SAP support team or consult with an SAP expert for further investigation.