How To Fix MDG_MDF042 - Conversion not possible; number of decimal places does not match unit

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 042

• Message text: Conversion not possible; number of decimal places does not match unit

What causes this issue?

Unit &V1& has &V2& decimal places. You entered &V3& decimal places.

System Response

The value cannot be converted.

How to fix this error?

Change the number of decimal places to &V2&.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF042 - Conversion not possible; number of decimal places does not match unit ?

  The SAP error message MDG_MDF042 indicates that there is a mismatch between the number of decimal places defined for a unit of measure and the number of decimal places in the value being processed. This error typically occurs in the context of Master Data Governance (MDG) when dealing with units of measure in material master data or other related entities.
  Cause:
  
  Decimal Places Mismatch: The value being entered has a different number of decimal places than what is defined for the unit of measure in the system. For example, if the unit of measure is defined to have 2 decimal places, but the value being entered has 3 decimal places, this error will occur.
  Configuration Issues: The unit of measure may not be properly configured in the system, leading to discrepancies in how values are interpreted.
  Data Entry Errors: Users may inadvertently enter values with incorrect decimal places.
  
  Solution:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (or use the relevant configuration path) to check the settings for the unit of measure.
  Verify the number of decimal places defined for the unit of measure in question.
  
  
  
  Adjust the Value:
  
  Ensure that the value being entered matches the decimal places defined for the unit of measure. For example, if the unit allows for 2 decimal places, round or truncate the value accordingly.
  
  
  
  Data Validation:
  
  Implement validation checks in the data entry process to ensure that users are entering values that conform to the defined decimal places for the respective units of measure.
  
  
  
  Review Master Data:
  
  If the error occurs during data migration or mass uploads, review the source data to ensure that it adheres to the decimal place requirements for the units of measure being used.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on handling units of measure and decimal places.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  CUNI: Customizing settings for units of measure.
  MM01/MM02: For creating or changing material master data.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide patches related to this error.
  
  
  User Training: Ensure that users are trained on the importance of adhering to the defined formats for units of measure and the implications of incorrect data entry.
  
  
  By following these steps, you should be able to resolve the MDG_MDF042 error and ensure that your data adheres to the required standards for units of measure in SAP.