How To Fix BM803 - SI units must have specific conversion factors

BM803 - Overview

• Message type: E = Error

• Message class: BM - Development class BZME - units of measure

• Message number: 803

• Message text: SI units must have specific conversion factors

What causes this issue?

The conversion to the corresponding SI unit is maintained in the
measurement units table for each unit in accordance with the assigned
dimension. The conversion factors for the SI units must be as follows:
Numerator,,,,= 1
Denominator,,,,= 1
Exponent,,,,= 0
Additive constant,,,,= 0

System Response

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

How to fix this error?

Choose the correct SI units under "Dimension" in the
<DS:TRANS.OMSC>Maintain measurement units</> and, if necessary, check
their conversion factors under "Measurement units".

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM803 - SI units must have specific conversion factors ?

  The SAP error message BM803, which states "SI units must have specific conversion factors," typically occurs in the context of material management or production planning when there is an issue with the unit of measure (UoM) configuration in the system. This error indicates that the system requires specific conversion factors for the Standard International (SI) units being used, and these factors are either missing or incorrectly configured.
  
  Cause:
  
  Missing Conversion Factors: The conversion factors for the SI units are not defined in the system.
  Incorrect Unit Configuration: The units of measure may not be properly configured in the material master or other relevant settings.
  Inconsistent Unit Usage: There may be inconsistencies in how units are defined or used across different materials or processes.
  Custom Development Issues: If there are custom developments or enhancements in the system, they may not be handling unit conversions correctly.
  
  
  Solution:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (Unit of