Sory for my insist.

The event OnPlayerBalanceChange can be launch when a plugin change the balance with help of Vault ! (Very large number of plugins use Vault)

Please, it can help me...

please stop creating new Issues for duplicates. As I stated, I will not be implementing this for a very good reason: There's no consistent way to detect when another plugin directly hooks an economy making the result of events such as this unreliable. The point of an event would be to detect it at all times, since this can not be accomplished with the current system you should look at requesting specific events in a specific economy instead of relying on Vault to do this work.