How To Fix MA055 - Enter a unit of measurement that has been defined in Customizing

MA055 - Overview

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 055

• Message text: Enter a unit of measurement that has been defined in Customizing

What causes this issue?

The unit of measure you have entered is not maintained in the system.

System Response

Your entry cannot be interpreted.

How to fix this error?

Enter a unit that has been configured in the system as a unit of
measurement. Your units of measurement can be checked in Customizing
under "Global Settings".

Error message extract from SAP system. Copyright SAP SE.

MA055 - Details

• The SAP error message MA055 ("Enter a unit of measurement that has been defined in Customizing") typically occurs when you are trying to enter a unit of measurement (UoM) in a transaction or master data record that has not been defined in the system's configuration. This error is common in various modules, particularly in Materials Management (MM) and Production Planning (PP).
  
  Cause:
  
  Undefined Unit of Measurement: The unit of measurement you are trying to use has not been defined in the system's customizing settings.
  Incorrect UoM: The UoM may be misspelled or incorrectly entered.
  Missing UoM in Master Data: The UoM may not be assigned to the material or item you are working with.
  
  
  Solution:
  To resolve the MA055 error, follow these steps:
  
  
  Check UoM Definition:
  
  Go to the SAP Customizing Implementation Guide (IMG).
  Navigate to Logistics - General > Basic Settings > Units of Measure > Define Units of Measure.
  Verify if the UoM you are trying to use