Message type: E = Error
Message class:  ID_FIAA_JP_TAX - Messages for Tax Report raidjp_tax 
Message number: 021
Message text: ABAP object error: rates BAdi - contact SAP Support
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The SAP error message ID_FIAA_JP_TAX021 typically relates to issues with the tax calculation in the Japanese localization of SAP, particularly in the context of the Financial Accounting (FI) module. This error is associated with the BAdI (Business Add-In) implementation for tax rates, which may not be functioning correctly.
Cause: BAdI Implementation Issues: The BAdI for tax rates may not be implemented correctly or may be missing altogether. This can lead to the system being unable to retrieve or calculate the necessary tax rates. Configuration Errors: Incorrect configuration settings in the tax calculation settings for Japan could lead to this error. Data Issues: Missing or incorrect data related to tax rates in the system can also trigger this error. System Updates: If there have been recent updates or changes to the system, it may have affected the BAdI implementation or related configurations.
Solution: Check BAdI Implementation: Go to transaction SE19 (BAdI Implementation) and check if the BAdI for
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