Message type: E = Error
Message class:  HRPAYSK_INS - Message class for Payroll / Insurance (Slovak version) 
Message number: 055
Message text: Main pers.number to pers.number &1 could not be deterem.(acc.to IT0121)!
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The SAP error message HRPAYSK_INS055 indicates that the system is unable to determine the main personnel number for the specified personnel number in the context of infotype IT0121 (which is related to "Additional Payments" in the SAP HR module). This error typically arises during payroll processing or when trying to access or modify employee data.
Cause: Missing Data: The main personnel number may not be defined in the system for the given personnel number. This can happen if the employee has not been properly set up in the system or if there are missing entries in the relevant infotypes. Incorrect Configuration: There may be configuration issues in the payroll settings or in the infotype settings that prevent the system from correctly identifying the main personnel number. Data Inconsistencies: There could be inconsistencies in the employee master data, such as missing relationships or incorrect entries in related infotypes. Authorization Issues: Sometimes, the user may not have
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