Simple IDOC -> Third party szenario

Hello,

I just want to custumize the following simple szenario:

Sending an IDOC from SAP 4.6c via XI to a third party system, that is accepting IDOC.

I have configured the szenario in XI so far. IDOC customzing and RFC settings are done.

In XI i have defined two Business Systems. No mapping is necessary. I have just entered one communication channel for the third party system (IDOC channel) and one receiver agreement. For the third party component i have imported the IDOC description.

Is there more to do in XI?

Do i need a receiver determination?

Do i need interface determination?

Regards,

Christian