How To Fix M3342 - Unit of measure & is still used (deletion not possible)

M3342 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 342

• Message text: Unit of measure & is still used (deletion not possible)

What causes this issue?

You have attempted to delete the unit of measure &V1& although it is
still used as an alternative unit for the material.

How to fix this error?

Make sure that you really no longer need this unit. If so, first
reset the alternative unit of measure on the corresponding data screen
and then delete the unit of measure on the units of measure screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3342 - Unit of measure & is still used (deletion not possible) ?

  The SAP error message M3342, which states "Unit of measure & is still used (deletion not possible)," typically occurs when you attempt to delete a unit of measure (UoM) that is still being referenced in various transactions or master data within the SAP system. This can happen in several contexts, such as materials management, inventory management, or sales and distribution.
  
  Cause:
  The error arises because the unit of measure you are trying to delete is still in use in one or more of the following areas:
  
  Material master records
  Purchase orders
  Sales orders
  Inventory records
  Production orders
  Other transactional data
  
  
  Solution:
  To resolve this error, you need to identify where the unit of measure is still being used and take appropriate action. Here are the steps you can follow:
  
  
  Identify Usage:
  
  Use transaction codes like MM03 (Display Material) to check if the UoM is assigned to any material.
  Check for any open purchase orders, sales orders, or production orders that might be using