How To Fix O3056 - No unit of measure group is assigned to & and &

O3056 - Overview

• Message type: E = Error

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

• Message number: 056

• Message text: No unit of measure group is assigned to & and &

What causes this issue?

The unit of measure group for this material is not defined.

System Response

The system stops processing.

How to fix this error?

You will have to assign a UoM (unit of measure group) to this material
for the plant / storage location combination.

Error message extract from SAP system. Copyright SAP SE.

O3056 - Details

• The SAP error message O3056 indicates that there is no unit of measure (UoM) group assigned to a specific material or product in the system. This error typically arises during processes that involve material management, such as creating or changing material master records, or during transactions that require unit of measure conversions.
  
  Cause:
  
  Missing UoM Group Assignment: The material or product in question does not have a unit of measure group assigned in the material master data.
  Incorrect Material Type: The material type may not be configured to allow for unit of measure groups.
  
  Configuration Issues: There may be issues in the configuration settings related to units of measure in the SAP system.
  
  
  Solution:
  To resolve the O3056 error, follow these steps:
  
  
  Check Material Master Data:
  
  Go to the transaction code MM02 (Change Material) or MM03 (Display Material).
  Enter the material number that is causing the error.
  Navigate to the "Basic Data" or "Purchasing" views and check if a unit