Specifies the data type of the return value:

Specifies the maximum number of characters for the return value for simple return values and varchar data types

Specifies the name of a system class or user class in the current application, or an included application for reference or array return values.

You can enter the name of the class directly, or access the class by clicking the control button to the right of the entry field and selecting it from the Select a Class dialog. For more information about this dialog, see Set a Return Value (see Set a Return Value).