How To Fix O3190 - UoM group cannot be changed because of stock posted

O3190 - Overview

• Message type: E = Error

• Message class: O3 - IS-Oil: HPM messages (goods movements, QCI, deliveries)

• Message number: 190

• Message text: UoM group cannot be changed because of stock posted

What causes this issue?

You attempted to change the unit of measure group for the material, but
that is not allowed once stock has been posted to the material at any
of the plants.

System Response

The system will change the unit of measure group back to the original
value.

Error message extract from SAP system. Copyright SAP SE.

O3190 - Details

• The SAP error message O3190 indicates that a Unit of Measure (UoM) group cannot be changed because there is stock that has already been posted against that UoM group. This typically occurs when you attempt to change the UoM group for a material that has existing stock in the system, which can lead to inconsistencies in inventory management and reporting.
  
  Cause:
  
  Existing Stock: The primary cause of this error is that there are stock quantities recorded in the system for the material in question, and changing the UoM group would affect how that stock is managed and reported.
  Open Transactions: There may be open purchase orders, sales orders, or other transactions that reference the material with the current UoM group.
  Material Master Data: The material master data is linked to the UoM group, and changing it while stock exists can lead to data integrity issues.
  
  
  Solution:
  To resolve this error, you can consider the following steps:
  
  
  Check