How To Fix CTE_FIN_MD027 - Custom field &1 must be unique.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CTE_FIN_MD -

  • Message number: 027

  • Message text: Custom field &1 must be unique.

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  • Self-Explanatory Message

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    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

  • What is the cause and solution for SAP error message CTE_FIN_MD027 - Custom field &1 must be unique. ?

    The SAP error message CTE_FIN_MD027, which states "Custom field &1 must be unique," typically occurs in the context of data entry or data processing within SAP, particularly when dealing with custom fields in financial or master data records. This error indicates that the value being entered for the specified custom field (denoted by &1) is not unique, meaning that there is already an existing record with the same value for that field.

    Cause:

    1. Duplicate Entry: The most common cause of this error is that the value you are trying to enter in the custom field already exists in the database for another record. SAP enforces uniqueness for certain fields to maintain data integrity.
    2. Configuration Settings: The uniqueness constraint may have been configured in the system for that specific custom field, which means that it is designed to accept only unique values.
    3. Data Migration Issues: If data was migrated from another system or imported in bulk, it may have introduced duplicates that violate the uniqueness constraint.

    Solution:

    1. Check Existing Records: Review the existing records in the relevant table or application to see if the value you are trying to enter already exists. You can use transaction codes like SE16 or SE11 to view the underlying database tables.
    2. Modify the Value: If the value is indeed a duplicate, you will need to modify it to a unique value that does not conflict with existing records.
    3. Data Cleanup: If duplicates exist due to data migration or entry errors, consider cleaning up the data to remove or consolidate duplicates.
    4. Review Configuration: If you believe the uniqueness constraint is not necessary, consult with your SAP administrator or functional consultant to review the configuration settings for that custom field. They may be able to adjust the settings if appropriate.
    5. Error Handling: Implement error handling in your data entry or processing logic to catch this error and provide a user-friendly message or alternative actions.

    Related Information:

    • Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser), SE11 (Data Dictionary), and SE80 (Object Navigator) to investigate the underlying data and configurations.
    • Custom Fields: Understand how custom fields are defined in your SAP system, including their properties and constraints.
    • SAP Notes: Check SAP Notes or the SAP Support Portal for any known issues or additional guidance related to this error message.
    • Documentation: Review SAP documentation or training materials related to data management and custom fields for best practices.

    If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.

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