How To Fix C1105 - Inconsistent change to allowed values

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 105

• Message text: Inconsistent change to allowed values

What causes this issue?

You have changed the allowed values.
The characteristic has already been used. The system check of the
values already assigned has found at least one case where the
characteristic has been assigned a value that is no longer within the
range of allowed values.

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?

Undo your change.
Before you change the allowed values, first check all values assigned
to the characteristic and delete or change the values that do not
correspond to the allowed values you want to change to.
To see a list of where the characteristic has been used, choose
<LS>Environment -> Where-used list</> from the characteristics menu.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1105 - Inconsistent change to allowed values ?

  The SAP error message C1105, "Inconsistent change to allowed values," typically occurs when there is a conflict or inconsistency in the allowed values for a particular field or characteristic in the system. This error is often encountered in the context of configuration or master data management, particularly when dealing with characteristics in variant configuration or when maintaining master data.
  Causes:
  
  Inconsistent Data: The allowed values for a characteristic may have been changed in a way that conflicts with existing data or settings.
  Configuration Changes: Changes made to the configuration of a material or characteristic that do not align with the existing allowed values.
  Master Data Issues: Issues in the master data where the allowed values for a characteristic do not match the values assigned to existing records.
  Transport Issues: If changes were transported from one system to another, inconsistencies may arise if the target system does not have the same configuration or data.
  
  Solutions:
  
  Review Allowed Values: Check the allowed values for the characteristic in question. Ensure that they are consistent with the values being used in the system.
  Adjust Configuration: If you have made changes to the configuration, ensure that these changes are valid and do not conflict with existing data.
  Data Consistency Check: Run consistency checks on the master data to identify any discrepancies between allowed values and actual data.
  Revert Changes: If the error occurred after a recent change, consider reverting the change to see if that resolves the issue.
  Transport Validation: If the issue arose after a transport, validate that all necessary objects and configurations were transported correctly and that the target system is in sync with the source system.
  Consult Documentation: Review SAP documentation or notes related to the specific characteristics or configuration settings to ensure compliance with best practices.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CT04 (to maintain characteristics) or CU01 (to maintain configuration profiles) to review and adjust settings.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide guidance on resolving this error.
  Support: If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP configuration and master data management.
  
  By following these steps, you should be able to identify the root cause of the C1105 error and implement a solution to resolve it.