Message type: E = Error
Message class:  IDFI_VAT_PR - VAT Pro-Rata 
Message number: 170
Message text: Fill balance line method & not used
One of the causes may happen:
New General Ledgar Accounting is not active, Document Splitting is not
active or No Mandatory Document Splitting Characteristics for General
Ledger.
Standard method behaviour will apply.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message IDFI_VAT_PR170 "Fill balance line method & not used" typically occurs in the context of VAT (Value Added Tax) processing in SAP. This error indicates that there is an issue with the configuration or data related to the VAT balance line method.
Cause:
Configuration Issues: The balance line method for VAT may not be properly configured in the system. This could be due to missing settings in the VAT configuration or incorrect assignment of the balance line method to the relevant tax codes or accounts. Data Issues: There may be inconsistencies or missing data in the documents that are being processed, which prevents the system from correctly calculating or posting the VAT. Customizations: If there are custom developments or enhancements in the VAT processing logic, they may not be handling the balance line method correctly.
Solution: Check Configuration: Go to the SAP Customizing Implementation Guide (SPRO) and navigate to the VAT configuration settings. Ensure that
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