Element Input Validation Fast Formula strange behaviour

Summary:

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Hi Team,

I wrote this formula that works with element input values.

In the element we have 2 input values:

Percentage

Amount

The expected behaviour should be this one:

When Amount =0 

Than Amount should be calculated as (Employee Salary*(Percentage/100))

else if The percentage is 0

The percentage should be calculated as (Amount/Salary)*100

The strange behaviour occurs in the case that I wrote amount first and leave blank percentage:

ORA-20001: The data type TEXT of parameter PERCENTAGE doesn't match the data type NUMBER used in the formula.

ORA-06512: at "FUSION.HR_UTILITY", line 798 ORA-06512: at "FUSION.FF_EXEC_WRAPPER_PKG", line 81 ORA-06512: at line 2