So i have a parameter that is a string that I want to allow the user to enter multiple values (i.e. 1, 12, 15)

but when I call the parameter in my Selection Formulas > Report section with an if statement it returns 1, 2, 12, 15, 5)

it seems crystal is ignoring the comma and picking every possible number

Here is my if statement

(if {?MarketTypes} <> '' then {JCJMPM.udMarketType} in {?MarketTypes}
else 1 = 1) and

Thanks DMKanz