How To Fix 8B317 - Unit of measure &1 cannot be converted to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 8B - Localization (Brazil)

• Message number: 317

• Message text: Unit of measure &1 cannot be converted to &2

What causes this issue?

To calculate certain taxes (e.g. 'IPI Pauta' or 'Sub.Trib.') in
Brazilian tax calculation, you have to convert quantities using various
units of measure. This conversion is not possible using the units of
measure you have specified.

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?

Maintain the conversion rules for the units of measure specified or use
other units of measure for this particular business transaction.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 8B317 - Unit of measure &1 cannot be converted to &2 ?

  The SAP error message 8B317 indicates that there is an issue with the conversion of units of measure (UoM) in the system. Specifically, it means that the system is unable to convert a specified unit of measure (&1) to another unit of measure (&2). This can occur in various scenarios, such as during the creation of purchase orders, sales orders, or inventory management.
  Causes:
  
  Missing Conversion Factors: The conversion factors between the two units of measure may not be defined in the system.
  Incorrect Unit of Measure: The unit of measure being used may not be valid or recognized in the context of the transaction.
  Configuration Issues: There may be issues in the configuration of the material master or the unit of measure settings in the system.
  Data Inconsistencies: There may be inconsistencies in the data related to the material or the units of measure being used.
  
  Solutions:
  
  
  Check Unit of Measure Settings:
  
  Go to the material master (transaction code MM03) and check the units of measure defined for the material. Ensure that both the source and target units of measure are correctly defined.
  Verify that the conversion factors between the units of measure are set up correctly in the material master.
  
  
  
  Define Conversion Factors:
  
  If the conversion factors are missing, you can define them in the material master under the "Units of Measure" view. Make sure to include the necessary conversion factors for the units involved.
  
  
  
  Review Configuration:
  
  Check the configuration settings for units of measure in the SAP system. This can be done through the SPRO transaction (Customizing) under the relevant sections for material management.
  
  
  
  Validate Data:
  
  Ensure that there are no data inconsistencies in the material master or related documents. You may need to run consistency checks or data validation processes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on unit of measure conversions and related configuration.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), SPRO (Customizing).
  Unit of Measure Types: Ensure you understand the different types of units of measure (base unit, alternative unit, etc.) and how they relate to each other.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on unit of measure conversions.
  
  By following these steps, you should be able to identify and resolve the cause of the error message 8B317 in SAP.