Configure the parameters of the activity Window
Available parameters
Name - Enter a name for the parameter in the text entry field.
Type - Use the pulldown menu to select from Boolean, Byte, Char, DateTime, Decimal, Double, Guid, In16, Int32, Int64, SByte, Single, StatusCode, String, TypeInfo, UInt16, UInt32, UInt64, or Object.
Source Expression - Enter a source expression in the text entry field or click on the button to open the Expression Editor to configure your source expression.
Click Ok to return to the prior configuration window.