How To Fix NAA107 - Error during conversion of order unit &1 to scale unit &2

SAP Error Message - Details

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 107

• Message text: Error during conversion of order unit &1 to scale unit &2

What causes this issue?

Conversion of order unit &1& to scale unit &V2& of the scale basis is
not possible.

System Response

Business volume data is not updated as the business volume for the scale
basis is missing.

How to fix this error?

Ensure that the system is able to determine the business volume in the
form given above.
A suitable unit conversion should be defined for this in the material
master (alternative unit of measure) or info record. The system used
this data (info record, material master) to carry out the above
conversion, but without success.
If necessary, contact your system administrator.

If you have the necessary authorization, you can maintain the material
master directly.
AUFRUF DER TRANSAKTION MATERIALSTAMM AENDERN

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

<DS:TRAN.MM02>Perform function</>
If you have the necessary authorization, you can maintain the info
record directly.
AUFRUF DER TRANSAKTION INFOSATZ AENDERN
<DS:TRAN.ME12>Perform function</>
ENDIF
The settlement document concerned has the number &V3&, item &V4&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NAA107 - Error during conversion of order unit &1 to scale unit &2 ?

  The SAP error message NAA107, which states "Error during conversion of order unit &1 to scale unit &2," typically occurs in the context of material management or production planning when there is an issue with unit conversion. This error indicates that the system is unable to convert the specified order unit into the scale unit due to a mismatch or configuration issue.
  Causes:
  
  
  Unit of Measure Configuration: The order unit and scale unit may not be properly defined in the system. This can happen if the units are not set up correctly in the material master or if there are inconsistencies in the unit of measure settings.
  
  
  Missing Conversion Factors: There may be no conversion factors defined between the order unit and the scale unit. SAP requires a defined conversion factor to perform the conversion.
  
  
  Incorrect Data Entry: The order may have been created with an incorrect unit of measure that does not match the expected units in the system.
  
  
  Material Master Issues: The material master data may be incomplete or incorrect, particularly in the units of measure section.
  
  
  Solutions:
  
  
  Check Unit of Measure Configuration:
  
  Go to the material master (transaction code MM03) and check the units of measure for the relevant material. Ensure that both the order unit and scale unit are defined correctly.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the material master under the "Units of Measure" view. Ensure that the conversion from the order unit to the scale unit is specified.
  
  
  
  Review Order Data:
  
  Check the order that triggered the error. Ensure that the units of measure used in the order are valid and correspond to the units defined in the material master.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for specific details on unit of measure configuration and conversion.
  
  
  
  Testing:
  
  After making changes, test the order creation or processing again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MM03 (Display Material)
  MM02 (Change Material)
  ME21N (Create Purchase Order)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  Unit of Measure Tables: Familiarize yourself with relevant tables such as T006 (Units of Measure) and T006A (Units of Measure: Language-Dependent Texts) for further insights into unit configurations.
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management or production planning.