BPM problems using a webservice

Hi all,

I am new on the NW and BPM domain and I am trying to do this BPM example [here|http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/12442] [original link is broken] [original link is broken] [original link is broken]; I have succeeded in creating and deploying the project but when I try to test it, it always stops in the Create Purchase Order step in which I have to call a webservice PurchaseOrderCreateRequestConfirmationIn and it never shows the notification step which shows whether the request is created or not.

All kinds of help are very appreciated thanks.

Soufiyan

I am using NW CE7.11 SP3