Message type: E = Error
Message class:  HRPSGB_HER - HR PS GB Higher Education Messages (USS, HESA etc) 
Message number: 501
Message text: Return Value &1 is not in the correct format. (&2) Key:&3
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The SAP error message HRPSGB_HER501 indicates that there is an issue with the format of a return value in a specific context, often related to HR (Human Resources) processes. The message typically includes placeholders for specific values, which can help identify the exact nature of the problem.
Cause: Incorrect Data Format: The return value (&1) is not in the expected format. This could be due to: Data type mismatch (e.g., expecting a numeric value but receiving a string). Incorrect length of the data (e.g., too many or too few characters). Invalid characters in the data (e.g., special characters that are not allowed).
Configuration Issues: There may be issues with the configuration of the HR module or the specific process being executed. Custom Code: If there are custom developments or enhancements in the system, they might be causing the return value to be formatted incorrectly. Data Entry Errors: Manual data entry errors can lead to incorrect formats being saved
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