How To Fix COM_PRODUCT_UNIT016 - Unit of measure &1 is not allowed for the product

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_PRODUCT_UNIT - Messages on Units of Measure

• Message number: 016

• Message text: Unit of measure &1 is not allowed for the product

What causes this issue?

You have specified an alternative unit of measure for the product.
However, this unit of measure is not allowed due to the units of
measure already assigned to the product.
<ZH>Reason</>
Due to its dimension, the alternative unit of measure specified (&V1&)
can be naturally converted to a unit of measure (&V2&) that is already
assigned to the product. However, this natural conversion is possible
only using an additive constant. It is not possible merely with
conversion numerator and denominator.
For a product, the alternative units of measure that it is useful to
define are only those that can be converted merely with a conversion
numerator and denominator to all units of measure already assigned to
the product.

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?

Cancel the entry or specify an allowed 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 COM_PRODUCT_UNIT016 - Unit of measure &1 is not allowed for the product ?

  The SAP error message COM_PRODUCT_UNIT016 indicates that the unit of measure (UoM) specified for a product is not allowed or not valid in the context of the operation you are trying to perform. This error typically arises in scenarios involving product master data, especially when dealing with product planning, inventory management, or sales processes.
  Cause:
  
  Invalid Unit of Measure: The unit of measure you are trying to use for the product is not defined or not allowed in the system.
  Configuration Issues: The product may not be configured to accept the specified unit of measure in its master data settings.
  Unit of Measure Group: The product may be assigned to a unit of measure group that does not include the specified unit of measure.
  Transaction Context: The operation you are performing may not support the specified unit of measure due to business rules or settings in the system.
  
  Solution:
  
  
  Check Product Master Data:
  
  Go to the product master data in SAP (transaction code MM02 for material master).
  Verify the units of measure assigned to the product. Ensure that the unit of measure you are trying to use is listed.
  
  
  
  Review Unit of Measure Group:
  
  Check the unit of measure group assigned to the product. Ensure that the desired unit of measure is included in this group.
  You can do this by navigating to the relevant configuration settings in the SAP system.
  
  
  
  Adjust Configuration:
  
  If the unit of measure is not allowed, you may need to add it to the unit of measure group or adjust the product's configuration to allow for the desired unit of measure.
  This may involve working with your SAP configuration team to ensure that the necessary settings are in place.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or guidelines for the specific business process you are working with to ensure compliance with the required units of measure.
  
  
  
  Testing:
  
  After making changes, test the transaction again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, units of measure are critical for inventory management, sales, and procurement processes. Each product can have multiple units of measure defined, such as base unit, sales unit, and purchasing unit.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MM03 (Display Material), and OMN1 (Define Units of Measure) for managing product data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or updates provided by SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management or product data management.