How To Fix BM395 - Units of measurement are assigned to different dimensions

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 395

• Message text: Units of measurement are assigned to different dimensions

What causes this issue?

In the units of measurement table, unit &V1& is assigned to dimension
&V2& while unit &V3& is assigned to dimension &V4&. The dimensions are
therefore different.

System Response

The units cannot be converted.

How to fix this error?

The conversion you require can only be carried out specific to material.
The system needs the number of a material master record that has been
maintained accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM395 - Units of measurement are assigned to different dimensions ?

  The SAP error message BM395, which states "Units of measurement are assigned to different dimensions," typically occurs in the context of material management or inventory management when there is a mismatch in the units of measurement (UoM) assigned to a material. This error indicates that the system has detected that the units of measurement being used do not correspond to the same dimension, which can lead to inconsistencies in data processing.
  Cause:
  
  
  Different Dimensions: The most common cause of this error is that the units of measurement being used for a material are defined in different dimensions. For example, if you have a unit of measurement for weight (like kilograms) and a unit of measurement for volume (like liters), the system will not allow you to convert or use them interchangeably.
  
  
  Incorrect Configuration: The configuration of units of measurement in the system may not be set up correctly. This can happen if the UoM is not properly defined in the SAP system or if there are inconsistencies in the master data.
  
  
  Material Master Data Issues: The material master data may have incorrect or incomplete entries regarding the units of measurement.
  
  
  Solution:
  
  
  Check Unit of Measurement Configuration:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) to check the configuration of the units of measurement.
  Ensure that the units of measurement are correctly assigned to the same dimension (e.g., weight, volume, length).
  
  
  
  Review Material Master Data:
  
  Use transaction code MM03 to display the material master data.
  Check the units of measurement assigned to the material and ensure they are consistent and correctly defined.
  
  
  
  Adjust UoM Settings:
  
  If necessary, adjust the settings for the units of measurement in the material master or in the configuration settings to ensure they are aligned with the correct dimensions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for detailed guidance on unit of measurement configuration and management.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CUNI: Unit of Measure Conversion
  MM03: Display Material Master
  MM02: Change Material Master
  MM01: Create Material Master
  
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  
  
  User Roles: Ensure that the user has the necessary permissions to make changes to the material master data and unit of measurement settings.
  
  
  By following these steps, you should be able to resolve the BM395 error and ensure that your units of measurement are correctly configured in SAP.