How To Fix MN337 - Conversion of units & and & not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 337

• Message text: Conversion of units & and & not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MN337 - Conversion of units & and & not possible ?

  The SAP error message MN337, which states "Conversion of units & and & not possible," typically occurs when there is an issue with unit conversion in the system. This can happen in various contexts, such as during the processing of materials, inventory management, or production planning.
  Causes:
  
  Missing Unit of Measure (UoM) Conversion: The system may not have a defined conversion factor between the two units of measure involved in the transaction.
  Incorrect Unit of Measure Configuration: The units of measure may not be correctly configured in the system, leading to conversion issues.
  Inconsistent UoM in Master Data: The material master or other relevant master data may have inconsistent or incorrect unit of measure settings.
  Unit of Measure Group Issues: The units of measure may belong to different groups that do not allow conversion between them.
  Data Entry Errors: Manual entry errors when specifying units of measure can also lead to this error.
  
  Solutions:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) to check if the conversion factors between the units are defined.
  Ensure that the units of measure are correctly set up in the system.
  
  
  
  Review Material Master Data:
  
  Use transaction code MM03 to view the material master data and check the units of measure assigned to the material.
  Ensure that the base unit of measure and alternative units of measure are correctly defined.
  
  
  
  Define Missing Conversions:
  
  If the conversion is missing, you can define it in the unit of measure conversion settings. Make sure to specify the correct conversion factor.
  
  
  
  Check Unit of Measure Groups:
  
  Ensure that the units of measure belong to the same group if they need to be convertible. You can check this in the configuration settings.
  
  
  
  Data Entry Validation:
  
  Validate the data entry process to ensure that users are entering the correct units of measure.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on unit of measure issues.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CUNI: Unit of Measure Conversion
  MM03: Display Material Master
  MM02: Change Material Master
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to unit conversions.
  User Training: Ensure that users are trained on how to correctly enter and manage units of measure in the system.
  
  By following these steps, you should be able to identify and resolve the cause of the MN337 error in SAP.