Congratulations on your purchase.
First, there are 2 types of transmission oils for automatics.
ATF and CVTF.
ATF is automatic transmission fluid. It's used in automatic cars like Honda prosmatics and Corolla automatic. It comes in ATF I, II and so on.
CVTF is continuously variable transmission fluid (CVT transmission). Honda steermatic comes with a CVT transmission. And all the these Japanese like vitz, passo, axio, prius.
The fluid you have used is the correct transmission fluid. It requires 3.7 litre of CVTF, do take the odo meter data for future milage calculation and change.
Enjoy the ride.