Message type: E = Error
Message class:  HRPAYSK_INS - Message class for Payroll / Insurance (Slovak version) 
Message number: 251
Message text: &1: Automatically forced retro into &2 due to SI proport.all.!
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The SAP error message HRPAYSK_INS251 typically relates to issues in the payroll processing, particularly in the context of retroactive accounting in the SAP HR module. The message indicates that there has been an automatic retroactive adjustment due to a change in the proportionality of a specific salary item (SI) for an employee.
Cause: Changes in Employee Data: The error often arises when there are changes in employee data that affect payroll calculations, such as changes in salary, deductions, or benefits. Proportionality Issues: The message specifically mentions "SI proport.all," which suggests that there is a problem with the proportionality of a salary item that is being recalculated retroactively. Payroll Configuration: Incorrect configuration in payroll settings or infotypes can lead to this error, especially if the system is unable to determine how to handle the retroactive changes.
Solution: Review Employee Data: Check the employee's infotypes (e.g., IT0008 for Basic Pay, IT0014 for Recurring Payments/Deductions) to ensure that all
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