Message type: E = Error
Message class:  HRPAYAT_MBGM - Messages for mBGM Functionality 
Message number: 251
Message text: Total RSUM (VP) does not match VSUM (mBGM), reference value &1
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The SAP error message HRPAYAT_MBGM251 indicates a discrepancy between the total amount calculated (RSUM) and the amount stored in the database (VSUM) for a specific payroll run. This error typically arises during the payroll processing in the Human Resources (HR) module, particularly when dealing with the results of payroll calculations.
Cause: Data Inconsistency: The most common cause of this error is a mismatch between the payroll results stored in the database and the results calculated during the payroll run. This can happen due to: Manual changes to payroll results after the payroll has been processed. Incorrect configuration in the payroll schema or rules. Issues with the payroll driver or custom enhancements that affect the calculation. Data corruption or inconsistencies in the database. Incorrect Payroll Configuration: If the payroll schema or the rules are not set up correctly, it can lead to discrepancies in the calculations. Changes in Master Data: Changes in employee master data (e.g., pay scale, tax
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