Message type: E = Error
Message class:  5G - HR: Messages for Britain 
Message number: 858
Message text: Reserved for RPUABPG0
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
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The SAP error message "5G858 Reserved for RPUABPG0" typically occurs during the execution of a payroll program, specifically when the system is trying to process payroll data. This error is often related to issues with the payroll driver program (RPUABPG0) that is responsible for executing payroll calculations.
Cause: Programmatic Issue: The error message indicates that there is a reserved area in the payroll program that is not being handled correctly. This could be due to a bug in the payroll driver or an issue with the configuration. Data Issues: There may be inconsistencies or errors in the employee master data or payroll data that the program is trying to process. Custom Enhancements: If there are custom enhancements or modifications made to the standard payroll process, they might be causing conflicts leading to this error.
Solution: Check for Notes and Patches: Look for SAP Notes related to this error message. SAP frequently releases notes that address known
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