Most importantly, you need to follow money management practices and keep your daily loss calculated from Start of the day equity up to 5% and your overall drawdown calculated from starting balance up to 10%. The same rules you already know from the previous phases.
Once you reach the final phase and get your StartTrader demo account, you no longer have to meet requirements for profit target (unless you are looking to scale your account). You are not required to make any specific volume. You just need to stay active. You need to close at least one trade per month. An account that has not been traded for 30 days will be closed.