Resolution

In Munis v11.3, do the following:

Access Deduction and Benefit Master (Payroll > Payroll Setup > Deduction and Benefit Master)
Search for the current deduction code
Click Duplicate
Enter the New deduction code > click OK
Select Yes to prompt Proceed with copy (XXXX -> XXXX)?

In Munis v2019+, do the following:

Access Deduction and Benefit Master (Payroll > Payroll Setup > Deduction and Benefit Master)
Search for the current deduction code
Click Copy
Enter the New deduction code > click OK
Select Yes to prompt Proceed with copy (XXXX -> XXXX)?

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