How To Fix KK431 - Enter unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: KK -

• Message number: 431

• Message text: Enter unit of measure

What causes this issue?

If the distribution function is active for costing, you need to enter a
unit of measure, otherwise you will not be able to distribute the
costs periodically.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You must enter a valid unit of measure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KK431 - Enter unit of measure ?

  The SAP error message KK431: "Enter unit of measure" typically occurs in the context of cost planning or when entering data related to cost centers, internal orders, or other financial transactions where a unit of measure is required.
  Cause:
  The error arises when the system expects a unit of measure (UoM) to be specified for a particular entry, but it has not been provided. This can happen in various scenarios, such as:
  
  Missing UoM in Master Data: The material or service being referenced does not have a defined unit of measure in its master data.
  Incorrect Configuration: The configuration settings for the relevant module (like controlling or materials management) may not be set up correctly to handle units of measure.
  Data Entry Error: The user may have overlooked entering the unit of measure while inputting data.
  
  Solution:
  To resolve the KK431 error, you can take the following steps:
  
  
  Check Master Data:
  
  Ensure that the material or service master data has a valid unit of measure defined. You can do this by navigating to the material master (transaction code MM03) and checking the relevant views (like Basic Data or Purchasing).
  
  
  
  Enter Unit of Measure:
  
  If you are entering data manually, make sure to fill in the unit of measure field where required. This could be in a cost planning transaction or while creating an internal order.
  
  
  
  Review Configuration:
  
  If the issue persists, check the configuration settings in the controlling module (transaction code OKKP for controlling area settings) to ensure that units of measure are properly defined and linked to the relevant cost elements or internal orders.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific transaction you are using to understand the requirements for entering units of measure.
  
  
  
  User Training:
  
  If this error is common among users, consider providing training or guidelines on how to properly enter data, including the importance of specifying units of measure.
  
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MM03 (Display Material)
  KK01 (Create Internal Order)
  KP06 (Cost Center Planning)
  
  
  
  Unit of Measure Types: Understand the different types of units of measure (e.g., base unit, order unit, sales unit) and how they relate to your business processes.
  
  
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address specific issues.
  
  
  By following these steps, you should be able to resolve the KK431 error and ensure that units of measure are correctly entered in your SAP system.