Message type: E = Error
Message class:  HRPAYAT_KSB - Messages for Sick Leave Certificates 
Message number: 151
Message text: No valid personnel numbers found in preprocessing
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The SAP error message HRPAYAT_KSB151 indicates that the system could not find any valid personnel numbers during the preprocessing phase of a payroll run. This error typically occurs in the context of payroll processing in the SAP Human Capital Management (HCM) module, particularly in the Austrian payroll (as indicated by the "AT" in the error code). Causes: Incorrect Selection Criteria: The selection criteria used to identify personnel numbers for payroll processing may be incorrect or too restrictive. Personnel Numbers Not Active: The personnel numbers you are trying to process may not be active or may not have valid payroll data for the period being processed. Data Inconsistencies: There may be inconsistencies or missing data in the employee master records or payroll infotypes that prevent the system from recognizing the personnel numbers. Payroll Control Record Issues: The payroll control record may not be set up correctly for the period in question, which can prevent the selection
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