How To Fix UPF122 - Characteristic &1 for the source unit is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: UPF - Planning Functions

• Message number: 122

• Message text: Characteristic &1 for the source unit is invalid

What causes this issue?

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

System Response

How to fix this error?

Check whether the characteristic is available in the level, and is of
the correct type.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPF122 - Characteristic &1 for the source unit is invalid ?

  The SAP error message UPF122 indicates that there is an issue with a characteristic in the context of a source unit, typically related to the Product Lifecycle Management (PLM) or similar modules where characteristics are used to define properties of products or materials.
  Cause:
  The error message UPF122 "Characteristic &1 for the source unit is invalid" usually arises due to one or more of the following reasons:
  
  Invalid Characteristic: The characteristic specified in the error message does not exist or is not defined correctly in the system.
  Incorrect Source Unit: The source unit (e.g., a material or product) may not be correctly linked to the characteristic, or the characteristic may not be applicable to that specific source unit.
  Configuration Issues: There may be configuration issues in the characteristic settings, such as missing values or incorrect data types.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the characteristic.
  
  Solution:
  To resolve the UPF122 error, you can follow these steps:
  
  
  Check Characteristic Definition:
  
  Go to the transaction code CT04 (Characteristic Maintenance) and verify that the characteristic mentioned in the error message exists and is correctly defined.
  Ensure that the characteristic is active and has the correct data type and values.
  
  
  
  Verify Source Unit:
  
  Check the source unit (material or product) to ensure that it is correctly defined and that the characteristic is applicable to it.
  Use transaction code MM03 (Display Material) or CS03 (Display Material BOM) to check the details of the source unit.
  
  
  
  Review Configuration:
  
  Ensure that the characteristic is properly assigned to the relevant classes or object types. You can check this in transaction code CL02 (Class Maintenance).
  Make sure that the characteristic values are correctly maintained.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access and modify the characteristic. You may need to consult with your SAP security team if there are authorization issues.
  
  
  
  Consult Documentation:
  
  Review any relevant SAP documentation or notes related to the specific characteristic or module you are working with, as there may be additional considerations or known issues.
  
  
  
  Testing:
  
  After making the necessary corrections, test the process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CT04, MM03, CL02, and others that may help in diagnosing and fixing the issue.
  SAP Notes: Check the SAP Support Portal for any notes related to UPF122 or the specific characteristic you are dealing with.
  Community Forums: Consider searching or posting in SAP community forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify and resolve the issue causing the UPF122 error in your SAP system.