How To Fix MDG_MDF138 - Key figure &1 (type &2) has no unit field

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 138

• Message text: Key figure &1 (type &2) has no unit field

What causes this issue?

Key figure &V1& has the type &V2&. A unit of measure or currency field
needs to be assigned to this data type. For technical reasons (for
example, generation of DDIC tables), an assignment of a fixed unit of
measure or a fixed currency is not possible.

System Response

You cannot use key figure &V1& in this manner.

How to fix this error?

You have two options:
Adjust the definition of key figure &V1& so that a suitable unit of
measure or currency field is assigned.
Make sure that key figure &V1& is no longer registered in your data
basis - for example, either by explicitly unregistering the key figure
or by deleting the use of this key figure (for example, as an attribute
of an explicitly-registered characteristic).

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF138 - Key figure &1 (type &2) has no unit field ?

  The SAP error message MDG_MDF138 indicates that a key figure in your Master Data Governance (MDG) configuration is missing a unit field. This typically occurs when you are trying to create or modify a key figure in the MDG system, and the system expects a unit of measure (UoM) to be associated with that key figure, but it is not defined.
  Cause:
  
  Missing Unit Field: The key figure you are trying to use does not have an associated unit of measure defined in the system.
  Configuration Issue: There may be a configuration issue in the MDG settings where the key figure is defined without a unit field.
  Data Model Definition: The data model for the key figure may not have been set up correctly to include a unit of measure.
  
  Solution:
  
  
  Check Key Figure Configuration:
  
  Go to the MDG configuration settings and check the definition of the key figure in question.
  Ensure that the key figure is defined with a unit of measure. If it is missing, you will need to add the appropriate unit field.
  
  
  
  Define Unit of Measure:
  
  If the key figure is supposed to have a unit of measure, make sure that the unit field is correctly defined in the data model.
  You can do this by navigating to the relevant data model in the MDG configuration and adding the unit field to the key figure.
  
  
  
  Review Data Model:
  
  Ensure that the data model associated with the key figure includes all necessary fields, including the unit of measure.
  If you are using a standard data model, check the SAP documentation for any updates or changes that may affect the key figure configuration.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration by trying to create or modify the key figure again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuring key figures and units of measure in MDG.
  Documentation: Refer to the official SAP documentation for Master Data Governance to understand the requirements for key figures and units of measure.
  Community Forums: Consider visiting SAP Community forums or other user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the MDG_MDF138 error and ensure that your key figures are correctly configured with the necessary unit fields.