How To Fix FKKINV296 - External number of payment data item &1 is not unique


FKKINV296 - Overview

  • Message type: E = Error

  • Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

  • Message number: 296

  • Message text: External number of payment data item &1 is not unique

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message FKKINV296 - External number of payment data item &1 is not unique ?
    The SAP error message FKKINV296 indicates that there is a problem with the uniqueness of the external number for a payment data item in the context of contract accounts receivable and payable (FI-CA). This error typically arises when the system encounters duplicate entries for the same external number, which is expected to be unique.
    
    Cause: Duplicate External Numbers: The primary cause of this error is that the external number (e.g., a payment reference number) is not unique within the system. This can happen if: The same external number has been used for multiple payment items. There is a data entry error where the same number was mistakenly entered multiple times. Data was imported or migrated into the system without proper checks for uniqueness.
    Configuration Issues: Sometimes, the configuration settings in the system may not enforce uniqueness correctly, leading to this error.
    Solution: Identify Duplicates: Use transaction codes like SE16 or SE11 to query the relevant database tables (e.g.,

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