How To Fix M2420 - No USING parameters maintained for unit conversion routine in TMC23

M2420 - Overview

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 420

• Message text: No USING parameters maintained for unit conversion routine in TMC23

Self-Explanatory Message

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M2420 - Details

• The SAP error message M2420, which states "No USING parameters maintained for unit conversion routine in TMC23," typically occurs in the context of material management and unit of measure conversions in SAP. This error indicates that the system is unable to find the necessary parameters for converting units of measure for a specific material or transaction.
  
  Cause:
  
  Missing Unit Conversion Routine: The error usually arises when the unit conversion routine (TMC23) does not have the required parameters defined for the specific unit of measure you are trying to use.
  Incorrect Configuration: There may be an issue with the configuration of the unit of measure settings in the material master or the conversion factors between different units of measure.
  Data Inconsistency: There could be inconsistencies in the data related to the material or its units of measure.
  
  
  Solution:
  To resolve the M2420 error, you can follow these steps:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code OMN3