BizTalk consume web service using dynamic address

Create a dynamic port
Set URL of the port using expression

/* set port address */
portDynamicSend(Microsoft.XLANGs.BaseTypes.Address) = msgDynamicAddress.DestinationURL;
/* set port type */
portDynamicSend(Microsoft.XLANGs.BaseTypes.TransportType) = "WCF-BasicHttp";

Modify the message using expression

msgSend2 = msgSend;
/* set web service operation name */
msgSend2(BTS.Operation)="Propose";
msgSend2(WCF.PropagateFaultMessage)= true;


/* if security is required, add the below lines */
msgSend2(WCF.SecurityMode)="Transport";
msgSend2(WCF.TransportClientCredentialType)="None";