Message type: E = Error
Message class:  5V - HR: Messages for Belgium 
Message number: 045
Message text: Lower income limit & smaller than upper income limit &
The lower income limit must be smaller than the upper limit.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Enter a lower limit that is smaller than the upper limit.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message 5V045 typically relates to issues with income limits in the context of payroll or benefits processing. This error indicates that the lower income limit is set to a value that is greater than or equal to the upper income limit, which is logically incorrect. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Configuration Error: The error often arises from incorrect configuration settings in the payroll or benefits module. Specifically, the income limits for a particular wage type or benefit type may have been set incorrectly. Data Entry Error: There may be a mistake in the data entry for the income limits, where the lower limit has been entered as higher than the upper limit. Master Data Issues: Employee master data or payroll data may have inconsistencies that lead to this error.
Solution: Check Configuration: Navigate to the relevant configuration settings in the SAP system (usually in the SPRO transaction). Verify
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