How to check the multi currencys work?

ERPNext
1

Hi,
1.I Want learn about the multi currency.??
2.How To I apply and Check ??
3.In Multi Currency,How to see the both currrency apply correctly??

2

@Mohamed_Sajid when do you mean Multi-Currency, I understood that you are meaning about https://frappe.github.io/erpnext/user/manual/en/accounts/multi-currency-accounting.html