Create a web service method (example) in Jitterbit Design Studio

Create the web service method

From the menu on the left, right click on Web Service Methods and choose New Web Service Method.
Name: Get Stock Quote
Choose Select a WSDL From a URL and enter: http://ws.cdyne.com/delayedstockquote/delayedstockquote.asmx?wsdl
Click Next.
From the drop down list at the top of the next screen, Choose: GetQuote (SOAP1.1).
Click Next.
Click Finish.

Right-click on Operation and choose New Operation.
Choose Web Service Call as your operation type and click Continue.
Right click on Source and Target and remove them from the graph.
Drag the Web Service Call that you created in the previous step into the Middle Box.
Double click on the Request transformation (left) and click the CreateNew Transformation button in the dialog box.
Select None at the bottom of the list for the source.
Click Finish.
Expand the tree on the left side of the transformation.
Double click on StockSymbol field.
Enter "CRM" between the <trans> and </trans> tags and click OK.
Double-click on the LicenseKey field; enter "0" between the <trans> and </trans> tags and click OK.
Double-click on the Response transformation (right) and click the Create New Transformation button in the dialog box.
Choose XML as your target and click Next.
Choose Create a new XML structure from a sample file and click next.
Using the browse button, navigate to the sample XML file that you have been provided: Sample XML File
Click Generate the XSD and click Next.
Uncheck the box on the next screen and click finish.
On the transformation screen, click the Automap function to map all the fields automatically.
Double click on the operation name and rename it to: Get Stock Quote
Click OK.
For writing the results of the stock to the log file, view this video:

The video Harmony Starter Pack, Part 3: How to Call a Web Service in Jitterbit demonstrates these steps: