How To Fix FKKBIX445 - Internal data type &1 is not supported (field &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 445

• Message text: Internal data type &1 is not supported (field &2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBIX445 - Internal data type &1 is not supported (field &2) ?

  The SAP error message FKKBIX445 indicates that there is an issue with the internal data type of a field in the context of a financial transaction or document processing. This error typically arises when the system encounters a data type that it does not recognize or support for a specific operation.
  Cause:
  
  Unsupported Data Type: The error suggests that the internal data type of a field (denoted by &1) is not supported for the operation being performed, which is indicated by the field name (denoted by &2).
  Configuration Issues: There may be a misconfiguration in the system settings or in the data model that leads to the use of an unsupported data type.
  Custom Development: If there are custom developments or enhancements in the system, they might be using data types that are not compatible with standard SAP processing.
  Data Migration Issues: If data has been migrated from another system, it may contain unsupported data types.
  
  Solution:
  
  Check Data Types: Review the data types being used in the relevant fields. Ensure that they are compatible with the expected data types in the SAP system.
  Review Configuration: Check the configuration settings related to the financial documents or transactions that are generating the error. Ensure that all settings are correctly defined.
  Debugging: If you have access to the ABAP development environment, you can debug the program or transaction that is causing the error to identify the exact point of failure and the data types involved.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or module you are working with to see if there are any known issues or updates.
  Custom Code Review: If there are custom developments, review the code to ensure that it adheres to SAP standards and does not introduce unsupported data types.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context to help them diagnose the issue.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to check transaction codes related to financial accounting (e.g., FB01, F-02) or any custom transactions that are being used.
  SAP Notes: Search for SAP Notes related to FKKBIX445 or the specific transaction you are working with. SAP Notes often contain fixes or workarounds for known issues.
  Community Forums: Check SAP Community forums or other online resources where users may have encountered similar issues and shared their solutions.
  
  By following these steps, you should be able to identify the cause of the FKKBIX445 error and implement a suitable solution.