Can I transfer 800,000 baht to my Thai bank account now for my O A visa extension application?

The user wants to transfer 800,000 baht to their Thai bank account in preparation for a one-year extension of stay on their O A visa. Community responses indicate that the funds should be in the account at least two months before the application date, but there are differing opinions on whether it must be transferred now or can be done later. It is also noted that the funds do not necessarily need to originate from overseas and can be cash deposited.