How To Fix M2109 - Unit & not possible for key figure &

M2109 - Overview

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 109

• Message text: Unit & not possible for key figure &

What causes this issue?

The source field for field &V4& has the unit &V3&. It is not possible to
to convert from &V3& to &V1&. You can use the possible entries option
to find out which conversions are possible here.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2109 - Unit & not possible for key figure & ?

  The SAP error message M2109 typically indicates that there is an issue with the unit of measure (UoM) for a key figure in a planning scenario, often related to the use of a specific unit that is not compatible with the key figure being processed. This error can occur in various SAP modules, particularly in SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO).
  
  Cause:
  
  Incompatible Unit of Measure: The unit of measure assigned to the key figure is not compatible with the expected unit for that key figure. For example, if a key figure is defined to accept only "KG" (kilograms) but the data being processed is in "LBS" (pounds), this error may occur.
  Missing Unit of Measure: The key figure may not have a defined unit of measure, or the unit of measure may not be maintained in the master data.
  
  Configuration Issues: There may be configuration issues in