Control Record specifics

Gurus,

In the idoc channel if we have set the following options...

1) Apply Control record values from payload

2) Take sender from payload

What specific fields in the matmas idoc would i need to map so that the message is delivered to the ERP system...

Details i have are are...............

<b>

<u>XiSystem</u></b>

Port: SAPPORT1

RFC destination: PORT1091

<b>

<u>ERP System</u></b>

Port to XI SYSTEM: XICLIENT001

RFC destination: XICLIENT001

Is there anyone who can help here.!!