Message type: E = Error
Message class:  FKK_ID_IT - Messages for FI-CA: VAT reporting for Italy 
Message number: 029
Message text: Tax code & is invalid
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.
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The SAP error message "FKK_ID_IT029 Tax code & is invalid" typically occurs in the context of the SAP Convergent Charging (SAP CC) or SAP Contract Accounts Receivable and Payable (SAP FI-CA) modules. This error indicates that the tax code being referenced in a transaction is not valid or recognized by the system. Causes: Incorrect Tax Code: The tax code entered may not exist in the system or may have been deleted.
Configuration Issues: The tax code may not be properly configured in the system settings. Inactive Tax Code: The tax code might be inactive or not applicable for the specific transaction or date. Master Data Issues: The master data (e.g., customer/vendor records) may not have the correct tax code assigned. Transaction Type Restrictions: Certain transaction types may not allow specific tax codes. Solutions: Verify Tax Code: Check the tax code in the system to ensure it exists and is correctly spelled. You can do this by navigating to
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