Message type: E = Error
Message class:  HRITFJP_0559 - Message class for Infotype 0559 
Message number: 001
Message text: Invalid First pay period
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The SAP error message HRITFJP_0559001, which indicates "Invalid First pay period," typically arises in the context of payroll processing within the SAP Human Capital Management (HCM) module. This error can occur for various reasons, often related to the configuration of payroll periods or the data entered for an employee's payroll. Causes: Incorrect Payroll Period Configuration: The payroll period for the employee may not be set up correctly in the system. This could be due to an incorrect start date or an invalid period defined in the payroll schema. Employee Master Data Issues: The employee's master data may not be correctly maintained, particularly the infotype records related to payroll (e.g., infotype 0003 for payroll status). Date Mismatch: The first pay period defined for the employee may not align with the payroll calendar or may fall outside the defined payroll periods. Missing or Incorrect Payroll Control Record: The payroll control record may not be set up correctly
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