How To Fix BM016 - SI units must have specific conversion factors

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 016

• Message text: SI units must have specific conversion factors

What causes this issue?

The SI unit is the reference for the conversion of one unit of measure
to another. The conversion factors of SI units must be initial, i.e.
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?

Display a list of measurement units with F4, which fulfil this
condition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM016 - SI units must have specific conversion factors ?

  The SAP error message BM016, which states "SI units must have specific conversion factors," typically occurs in the context of material management or when dealing with unit of measure (UoM) conversions in SAP. This error indicates that the system has encountered an issue with the conversion factors for the specified units of measure, particularly when dealing with the International System of Units (SI).
  Cause:
  
  Missing Conversion Factors: The most common cause of this error is that the conversion factors for the specified units of measure are not defined in the system.
  Incorrect Unit of Measure Configuration: The units of measure may not be correctly configured in the SAP system, leading to inconsistencies.
  Incompatible Units: The units being used may not be compatible with the expected SI units, leading to conversion issues.
  Data Entry Errors: There may be errors in the data entry where the units of measure are incorrectly specified.
  
  Solution:
  
  
  Define Conversion Factors:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) in SAP.
  Check if the conversion factors for the relevant units of measure are defined. If not, you will need to create them.
  Ensure that the conversion factors are set up correctly for all relevant units.
  
  
  
  Check Unit of Measure Configuration:
  
  Use transaction code OMN3 to review the unit of measure settings.
  Ensure that the units of measure are correctly defined and that they are compatible with SI units.
  
  
  
  Review Material Master Data:
  
  Check the material master data for the specific material that is causing the error. Use transaction code MM03 to view the material details.
  Ensure that the units of measure and their conversion factors are correctly maintained in the material master.
  
  
  
  Data Entry Verification:
  
  Verify that the data being entered is correct and that the units of measure are specified properly.
  Ensure that the correct UoM is being used in transactions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on unit of measure configuration and conversion factors.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on unit of measure issues.
  User Manuals: Review user manuals or training materials related to material management and unit of measure handling in SAP.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the BM016 error and ensure that your unit of measure configurations are correctly set up in SAP.