1. First, you have to get the password. You can ask the foreign exchange bureau for the password, or you can ask your foreign exchange bank for the password. After you have the password, log in to the platform, change the initial password to your own password according to the prompt, then assign the salesman and set the salesman password. Finally, log in to the platform with the username and password of the salesman to operate.

2. If it is a class A enterprise, in general, if the advance payment exceeds 30 days or the payment is delayed for more than 90 days, it should be reported on the platform "Foreign Exchange Detection System for Trade in Goods", and generally registered on the platform "Online Declaration System for Balance of Payments" the next day.