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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MA055 - Enter a unit of measurement that has been defined in Customizing ?

  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 is listed. If it is not, you will need to create it.
  
  
  
  Create or Modify UoM:
  
  If the UoM is not defined, you can create it by clicking on the "New Entries" button and entering the necessary details (e.g., UoM code, description, etc.).
  Ensure that the UoM is set up correctly, including its conversion factors if applicable.
  
  
  
  Assign UoM to Material:
  
  If the UoM is defined but not assigned to the material, go to the material master record (transaction code MM02).
  Check the Basic Data view and ensure that the UoM is assigned correctly.
  
  
  
  Check for Typos:
  
  Double-check the spelling of the UoM you are entering. Ensure that it matches exactly with what is defined in the system.
  
  
  
  Consult Documentation:
  
  If you are unsure about the UoM to use, consult your organization's documentation or speak with a colleague who is knowledgeable about the materials or products involved.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of UoMs (e.g., base unit, alternative unit) and how they are used in SAP.
  Conversion Factors: If you are using multiple UoMs for a material, ensure that conversion factors are correctly defined.
  User Authorizations: Ensure that you have the necessary authorizations to create or modify UoMs in the system.
  
  By following these steps, you should be able to resolve the MA055 error and successfully enter the required unit of measurement in your SAP transactions.