How To Fix CM_SUB_DATA018 - Value assignment type &1 permits only one instance; delete the others

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SUB_DATA - Substance Data (Header, ID, Reference, Materials)

• Message number: 018

• Message text: Value assignment type &1 permits only one instance; delete the others

What causes this issue?

In Customizing, it was specified that the value assignment type &v1& can
only have one <DS:GLOS.3621B3A9B2CE569BE10000009B38F9B7>value assignment
instance</>. However, several exist.

System Response

Data is displayed as for a multiple value assignment.

How to fix this error?

Delete the superfluous value assignment instances.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_SUB_DATA018 - Value assignment type &1 permits only one instance; delete the others ?

  The SAP error message CM_SUB_DATA018 indicates that there is an issue with the value assignment type in your configuration. Specifically, it means that the value assignment type you are trying to use allows only one instance, but there are multiple instances present in your configuration.
  Cause:
  The error typically arises in the context of configuration settings related to characteristics and value assignments in SAP, particularly in the areas of variant configuration or classification. The specific causes can include:
  
  Multiple Instances: You have assigned the same value assignment type to multiple instances of a characteristic where only one is allowed.
  Incorrect Configuration: The configuration of the characteristic or the value assignment type may not be set up correctly, leading to conflicts.
  Data Entry Errors: There may have been an error during data entry or configuration that resulted in duplicate assignments.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Instances: Determine which instances of the value assignment type are causing the conflict. You can do this by reviewing the configuration settings for the characteristic in question.
  
  
  Delete Duplicate Instances: Once you have identified the duplicates, you need to delete the extra instances. You should keep only one instance of the value assignment type that is allowed.
  
  
  Review Configuration: After resolving the duplicates, review the configuration settings to ensure that they are set up correctly and that no other conflicts exist.
  
  
  Test the Configuration: After making the necessary changes, test the configuration to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  Documentation: Document the changes made for future reference and to help prevent similar issues from occurring.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as CU50 (Configuration Profile) or CT04 (Characteristic) to access and modify the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error message.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to resolve the CM_SUB_DATA018 error and ensure that your configuration is set up correctly.