Manager is doing great, Especially because of supporting so many languages and currencies including Persian And IRR.
But it could be even greater if you support Persian Jalali calendar too. Because if I as an Iranian I’m using it in Iran for my accounting here, It’s better to use it in my own calendar. Becaue here we use Jalali Calendar.
I just mean to replace international Gregorian calendar with Persian Jalali calendar automatically when we select Persian language as interface.
Here there are some examples in WordPress plugins which I’m using them for years and they are working great!