How To Fix M3563 - Unit of measure & not allowed for the current material

M3563 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 563

• Message text: Unit of measure & not allowed for the current material

What causes this issue?

You have specified an alternative unit of measure for the material.
However, this unit of measure is not allowed due to the units of
measure already assigned to the material.
<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 material. However, this natural conversion is possible
only using an additive constant. It is not possible merely with
conversion numerator and denominator.
For a material, 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 material.

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.

M3563 - Details

• The SAP error message M3563, which states "Unit of measure & not allowed for the current material," typically occurs when there is an issue with the unit of measure (UoM) configuration for a specific material in the system. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Incorrect Unit of Measure Configuration: The unit of measure you are trying to use for the material is not defined or allowed in the material master data.
  Material Master Settings: The material may not have the specified unit of measure assigned in its master data.
  UoM Conversion Issues: If there are conversion factors defined, they may not be set up correctly, leading to the error.
  Transaction Context: The transaction you are trying to perform may not support the specified unit of measure for the material type or the specific operation.
  
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03).
  Check the "Basic Data" and