Message type: E = Error
Message class:  HRPSGB_HER - HR PS GB Higher Education Messages (USS, HESA etc) 
Message number: 513
Message text: The period must be between 01-12. (&1)
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The SAP error message HRPSGB_HER513 indicates that there is an issue with the period specified in a payroll or HR-related transaction. The message states that the period must be between 01 and 12, which typically refers to the months of the year (January to December).
Cause: Invalid Period Input: The most common cause of this error is that the user has entered a period (month) that is outside the valid range of 01 to 12. For example, entering 00, 13, or any other number outside this range will trigger this error.
Configuration Issues: There may be configuration settings in the SAP system that restrict the valid periods for certain payroll or HR processes. Data Entry Errors: Mistakes during data entry, such as typographical errors, can lead to this issue.
Solution: Check Input Values: Verify the period you are entering. Ensure that it is a valid month number (01 for January, 02 for February, ..., 12 for
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