How To Fix CO344 - Item category &: Only base unit of measure & allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 344

• Message text: Item category &: Only base unit of measure & allowed

What causes this issue?

You have entered a unit of measure for a component of the item category
&V1& which does not correspond to the base unit of measure maintained
in the material master record.

How to fix this error?

Use the base unit of measure maintained in the material master record.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CO344 - Item category &: Only base unit of measure & allowed ?

  The SAP error message CO344 ("Item category &: Only base unit of measure & allowed") typically occurs in the context of production orders or cost object controlling when there is a mismatch between the unit of measure (UoM) used in the item category and the base unit of measure defined for the material.
  Cause:
  
  Unit of Measure Mismatch: The item category in the production order or cost object is trying to use a unit of measure that is not the base unit of measure defined for the material. For example, if the base unit of measure for a material is "EA" (each), but the item category is trying to use "KG" (kilograms), this error will occur.
  Configuration Issues: There may be configuration issues in the material master or the item category settings that do not allow for the correct unit of measure to be used.
  Incorrect Item Category: The item category being used may not be appropriate for the type of material or the operation being performed.
  
  Solution:
  
  Check Material Master: Verify the base unit of measure defined in the material master record (transaction code MM03). Ensure that the unit of measure being used in the production order or cost object matches the base unit of measure.
  Adjust Item Category: If the item category is incorrect, consider changing it to one that allows for the base unit of measure. This can be done in the production order or cost object settings.
  Review Configuration: Check the configuration settings for the item categories in the relevant customizing transactions (e.g., OPL8 for production order types). Ensure that the settings allow for the correct units of measure.
  Use Correct UoM: When creating or modifying the production order, ensure that you are using the base unit of measure for the item category.
  
  Related Information:
  
  Transaction Codes: 
  
  MM03: Display Material
  CO01: Create Production Order
  CO02: Change Production Order
  OPL8: Configure Item Categories
  
  
  Material Master Views: Check the Basic Data and Purchasing views for unit of measure settings.
  Documentation: Refer to SAP Help documentation for detailed information on unit of measure settings and item category configurations.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in production planning or controlling.