How To Fix CMX_PM120 - Unable to assign value to characteristic &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CMX_PM - Messages for Process Messages

• Message number: 120

• Message text: Unable to assign value to characteristic &1

What causes this issue?

You want to assign a data point to characteristic &V1& in the message
category. However, the data point specified cannot be read.

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?

The reason for this error is explained in the log of the preceding
message.

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 CMX_PM120 - Unable to assign value to characteristic &1 ?

  The SAP error message CMX_PM120, which states "Unable to assign value to characteristic &1," typically occurs in the context of Product Master Data or Classification in SAP. This error indicates that there is an issue with assigning a value to a characteristic of a product or material.
  Causes:
  
  Characteristic Not Defined: The characteristic you are trying to assign a value to may not be defined in the system.
  Value Not Allowed: The value you are trying to assign may not be valid for the characteristic. This could be due to restrictions or predefined value lists.
  Data Type Mismatch: The data type of the value being assigned may not match the expected data type of the characteristic.
  Authorization Issues: The user may not have the necessary authorizations to assign values to the characteristic.
  Inactive Characteristics: The characteristic may be inactive or not available for the specific class or object type.
  Configuration Issues: There may be configuration issues in the classification system or the material master setup.
  
  Solutions:
  
  Check Characteristic Definition: Verify that the characteristic is defined in the system and is active.
  Validate Value: Ensure that the value you are trying to assign is valid for the characteristic. Check if there are any restrictions or predefined value lists.
  Data Type Check: Confirm that the data type of the value matches the expected data type of the characteristic.
  Review Authorizations: Check the user’s authorizations to ensure they have the necessary permissions to assign values to the characteristic.
  Activate Characteristics: If the characteristic is inactive, activate it in the classification system.
  Consult Configuration: Review the configuration settings in the classification system to ensure everything is set up correctly.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CT04 (Create Characteristic), CT05 (Change Characteristic), and CL02 (Change Class) to manage characteristics and classes.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Refer to SAP Help documentation for detailed information on classification and characteristics management.
  Debugging: If the issue persists, consider debugging the process to identify the exact point of failure.
  
  If you continue to experience issues after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the relevant module.