F0411Z1 and multi currency

We acquired a company. I need to load their open AP into our system, some of which is in a different currency. At this time, we, ourselves, don't have any open AP in a foreign currency, so I have no "pattern" to follow. Do you have any tips or tricks for loading a foreign voucher?

For example: do I not load it into the Amount field, but rather in the Amount Currency field? Do I enter the specific exchange rate into the CRR field?

We are just in a testing phase right now so I can't break anything.

I have successfully used R04110ZA to load the domestic vouchers... I'm just unclear about how to deal with these foreign ones.