About Data Type Assignment

Data type of the parameter element for the result is ...	Literal value must be ...	Data type of assigned parameter element must be ...	Data type of action output must be ...	Constant must be ...
Boolean	Boolean	Boolean	Boolean	NULL
Boolean list	n/a	Boolean	Boolean	NULL
Character	Character	Character	Character	NULL
Character list	n/a	Character	Character	NULL
Date	Date	Date	Date	NULL
Date list	n/a	Date	Date	NULL
Document	n/a	Document	Document	NULL
Document list	n/a	Document list	Document list	NULL
Numeric (Byte, Double, Float, Integer, Long, Short)	Same data type or numeric data type with a smaller value.	Any numeric data type. Numeric data types with a greater value are truncated.	Any numeric data type. Numeric data types with a greater value are truncated.	NULL
Numeric list (Byte array, Byte list, Double list, Float list, Integer list, Long list, Short list)	n/a	Any numeric list. Numeric data types with a greater value are truncated.	Any numeric list. Numeric data types with a greater value are truncated.	NULL
String	String	String	String	NULL or EMPTY_STRING
String list	n/a	String list	String list	NULL or EMPTY_STRING
String table	n/a	String table	String table	NULL or EMPTY_STRING

Important:

Integer values are converted to Java doubles before being assigned to parameter elements. The conversion might introduce imprecision due to truncation or rounding. As the conversion to a Java double only handles up to 15 significant digits, it is highly recommended not to use integers with more than 15 digits in conjunction with decimal point parameter elements.