Time for action – invoking the WarehousingConfirmation service

To asynchronously invoke the WarehousingConfirmationBPEL service, we will do the following:

1. Open the BookWarehousingBPEL.wsdl interface.
2. Scroll to the bottom of the process. After the human task and before the callback (callbackClient), we will add a new scope, called WarehousingConfirmationInvocation.
3. Within the scope, first add an <invoke> activity to invoke the WarehousingConfirmationBPEL service invocation. Next, we will name the activity WarehousingConfirmationInvoke.
4. Connect the <invoke> activity to the WarehousingConfirmationBPEL partner link.
5. A window pops up, where we will specify the Partner Link, Port Type (WarehousingConfirmationBPEL), and Operation (confirmWarehousing), as shown in the following screenshot:
   
6. We do not have the input variable created yet; therefore, we will create this on the fly, using the green plus sign icon.
7. Pressing the green plus sign icon opens the Create Variable window. We will...