How To Fix /QOS/SERVICE012 - Unit conversion (product &1) failed: unit &2 -> unit &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /QOS/SERVICE -

• Message number: 012

• Message text: Unit conversion (product &1) failed: unit &2 -> unit &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /QOS/SERVICE012 - Unit conversion (product &1) failed: unit &2 -> unit &3 ?

  The SAP error message /QOS/SERVICE012 Unit conversion (product &1) failed: unit &2 -> unit &3 typically indicates that there is an issue with converting units of measure for a specific product in the SAP system. This can occur in various contexts, such as during the processing of sales orders, inventory management, or when performing calculations that involve different units of measure.
  Cause:
  
  Missing Unit of Measure: The target unit of measure (unit &3) may not be defined in the system for the product (product &1).
  Incompatible Units: The units of measure (unit &2 and unit &3) may not be compatible for conversion. For example, trying to convert between units that are not directly convertible (e.g., liters to kilograms without a defined conversion factor).
  Incorrect Configuration: The configuration for unit conversions in the material master or in the relevant customizing settings may be incorrect or incomplete.
  Data Inconsistencies: There may be inconsistencies in the data related to the product, such as missing or incorrect entries in the material master.
  
  Solution:
  
  
  Check Material Master: Verify the material master data for the product in question. Ensure that both the source and target units of measure are defined and that the conversion factors are correctly set up.
  
  Transaction Code: MM03 (Display Material)
  
  
  
  Review Unit of Measure Settings: Check the unit of measure settings in the customizing (SPRO) to ensure that the units are correctly defined and that conversion factors are established.
  
  Path: Logistics - General -> Material Master -> Basic Settings -> Units of Measure
  
  
  
  Define Conversion Factors: If the conversion factors are missing, you may need to define them in the material master under the "Units of Measure" view.
  
  Ensure that the conversion factor is appropriate for the units being converted.
  
  
  
  Check for Inconsistencies: Look for any inconsistencies in the data related to the product. This may involve checking for any recent changes or updates that could have affected the unit of measure settings.
  
  
  Consult Documentation: If the issue persists, consult SAP documentation or support resources for further guidance on unit conversion issues.
  
  
  Testing: After making any changes, perform tests to ensure that the unit conversion works as expected.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to unit conversion errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material) and MM01 (Create Material) for managing material master data.
  User Exits and BAdIs: If custom logic is involved in unit conversion, check for any user exits or BAdIs that may be affecting the conversion process.
  
  By following these steps, you should be able to identify and resolve the issue causing the unit conversion error in SAP.