How To Fix GP109 - Unit of measure & cannot be converted to &

GP109 - Overview

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 109

• Message text: Unit of measure & cannot be converted to &

What causes this issue?

You cannot change a unit of measure that is already stored in a record
in the data base. If you overwrite the unit of measure in planning,
the system automatically converts the respective value into the original
unit of measure.
However, both units must have the same dimension, such as time or
length, which was not the case for your entry.
In controlling, you can only define a unit of consumption the first
time you plan a cost center/cost element combination. Use the function
<ZH>"Edit", "Control data"</> for this definition.
You cannot overwrite this definition subsequently. The system will
immediately convert the value as described in point 1 above.

System Response

The system does not accept the unit of measure.

How to fix this error?

Correct your entry. You can display all possible units of measure
using F4. You can check the assigned dimensions in table T006, or
in controlling, use the function described in point 2 to define a new
unit of consumption.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GP109 - Unit of measure & cannot be converted to & ?

  The SAP error message GP109, which states "Unit of measure & cannot be converted to &," typically occurs when there is an issue with the conversion of units of measure (UoM) in the system. This error can arise in various contexts, such as during the creation of purchase orders, sales orders, or inventory management processes.
  
  Cause:
  
  
  Missing Conversion Factors: The most common cause of this error is that there are no defined conversion factors between the two units of measure involved. For example, if you are trying to convert from "liters" to "gallons" and there is no conversion factor defined in the system, this error will occur.
  
  
  Incorrect UoM Configuration: The units of measure may not be properly configured in the system. This can include issues with the UoM settings in the material master or the configuration of the UoM in the relevant SAP modules.
  
  
  Incompatible UoMs: The units of measure may not be