We do CCQ on the A319/20/21 and the A330.
Minimum of 15 months on the A320 required before starting the transition course.
All tech theory is done with a CD-ROM course by Airbus. ETOPS for newbies in classes.
Thereafter 5 sim sessions à 3:50 hrs. and a flight training with 5-6 landings.
Then 3 rotations with approx. 8 landings. Last one is the final check.