I am working on WCF WorkFlow Service Application. i have two ReceiveAndSendReply Activity in sequence. i have set CanCreateInstance to true in both the activities Now i am not able to access the second ReceiveAndSendReply Activity. i know this because its needs to be executed sequentially right ? then how can i create WCF service methods in such way that i can call any of the method anytime.i think that can be achieved by creating State Machine Workflow but how to create in WCF WorkFlow Please suggest me some best ways i can do this.