Message type: E = Error
Message class:  HRPSGB_HER - HR PS GB Higher Education Messages (USS, HESA etc) 
Message number: 013
Message text: UNSPECIFIED Customer WARNING occurred during User Exit (SEL)
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The SAP error message HRPSGB_HER013, which indicates an "UNSPECIFIED Customer WARNING occurred during User Exit (SEL)," typically arises in the context of SAP HR (Human Resources) processes, particularly during the execution of user exits or enhancements in the payroll or personnel administration modules.
Cause: User Exit Logic: The error is often caused by custom logic implemented in a user exit. This could be due to: Incorrect or incomplete coding in the user exit. Logic that does not handle certain conditions properly, leading to warnings. Data inconsistencies or unexpected values being processed. Data Issues: The data being processed may not meet the expected criteria, leading to warnings being triggered. This could include: Missing or incorrect employee data. Invalid payroll results or configurations.
Configuration Issues: There may be issues with the configuration settings in the HR module that affect how the user exit operates.
Solution: Review User Exit Code: Check the code implemented in the user exit associated with the error. Look for
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