How To Fix M3337 - Conversion factors for alt. units already exist; make sure you check them

M3337 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 337

• Message text: Conversion factors for alt. units already exist; make sure you check them

What causes this issue?

You have changed the base unit of measure, although alternative units
of measure and their conversion factors were already specified for the
previous base unit.

How to fix this error?

Check the conversion factors using F5.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3337 - Conversion factors for alt. units already exist; make sure you check them ?

  The SAP error message M3337 indicates that there are already existing conversion factors for alternative units of measure in the system. This typically occurs when you are trying to create or modify a material master record, specifically in the context of defining alternative units of measure and their conversion factors.
  
  Cause:
  The error arises when:
  
  You attempt to create a new conversion factor for an alternative unit of measure that already has existing conversion factors defined.
  There may be inconsistencies or conflicts in the data related to the alternative units of measure.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing Conversion Factors:
  
  Navigate to the material master record (transaction code MM03 for display).
  Go to the "Units of Measure" view.
  Review the existing alternative units of measure and their conversion factors to see if the one you are trying to add already exists.
  
  
  
  Modify or Delete Existing Conversion Factors:
  
  If you find that the conversion factor you want