Operation
Use this field to specify the name of the operation or method in the web service you are calling.
The format required for this field is defined by the web service itself. Therefore, it is assumed here that you know what, exactly, the web service requires.
To construct the operation definition using expressions, click the button to the left of this field.
The contents of this field must use this syntax:
scalarExpr
where scalarExpr is or resolves to an expression that refers to the operation or method name associated with the Web service you are calling.
When you click Event Actions form, the system "wraps" this content within a METHOD( ) parameter, which yields the following final syntax:
to return to theMETHOD( scalarExpr )