Message type: E = Error
Message class:  HRPAYSK_INS - Message class for Payroll / Insurance (Slovak version) 
Message number: 123
Message text: OBSOLETE!: IT5Y3A adjusted (reduced) according to LGART2_COR
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The SAP error message "HRPAYSK_INS123 OBSOLETE!: IT5Y3A adjusted (reduced) according to LGART2_COR" typically relates to issues in the payroll processing within the SAP HR module. This error indicates that a specific infotype (IT) record, in this case, IT5Y3A, has been adjusted or reduced based on a certain condition or configuration related to the LGART2_COR (which is likely a wage type or a specific payroll configuration).
Cause: Obsolete Infotype: The error suggests that the infotype IT5Y3A is considered obsolete or not valid in the current payroll context.
Configuration Issues: There may be issues with the configuration of wage types or payroll settings that lead to the adjustment of the infotype. Data Inconsistencies: There could be inconsistencies in the employee master data or payroll data that are causing the system to flag this error. Customizations: If there are custom developments or modifications in the payroll process, they might not be aligned with the standard SAP processes.
Solution: Check Infotype
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