Message type: E = Error
Message class:  HRPAYFI_KATRE - KATRE (Income Register) 
Message number: 611
Message text: Income type &1: Tax-free compensations are lowered retroactively!
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The SAP error message HRPAYFI_KATRE611 indicates that there is an issue with tax-free compensations being lowered retroactively for a specific income type in the payroll process. This error typically arises in the context of payroll processing when there are changes to compensation data that affect tax calculations.
Cause: Retroactive Changes: The error usually occurs when there are retroactive changes made to an employee's compensation that affect tax-free amounts. For example, if an employee's salary or compensation type is adjusted retroactively, it may lead to a situation where previously reported tax-free amounts are now deemed incorrect.
Configuration Issues: There may be issues with the configuration of the income types in the payroll schema or the way tax-free compensations are defined in the system. Data Inconsistencies: Inconsistencies in the employee master data or payroll results can also trigger this error. This could include incorrect entries in infotypes related to compensation or tax exemptions.
Solution: Review Retroactive Changes: Check
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