Message type: E = Error
Message class:  HRPAYAT_0527 - Notifications in the Master Data Area (Austria) IT 0527 
Message number: 690
Message text: Start date &1 and end date &2 are not possible
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The SAP error message HRPAYAT_0527690 indicates that there is an issue with the specified start and end dates in a payroll or time evaluation process. This error typically arises in the context of payroll processing in the SAP HR module, particularly in the Austrian payroll (as indicated by the "AT" in the error code).
Cause: The error message "Start date &1 and end date &2 are not possible" usually occurs due to one or more of the following reasons: Invalid Date Range: The start date is after the end date, or the dates do not fall within a valid payroll period. Missing Master Data: The employee's master data (such as employment status, contract details, etc.) may not be set up correctly for the specified period. Payroll Control Record: The payroll control record may not be set up for the specified period, or it may be locked for processing. Time Evaluation Issues: If time evaluation is involved,
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