I have question about brave referral

I don’t know this matter clearly,so reply me about the issue.
After install is it need to use the browser 1 month continuously that means there is no gap even 1 day for 1 month.

Or if anyone install brave browser from referral link and if he don’t use the browser continuously but he must use the browser over the month that means there is at least 1 day gap of 1 month,
Can it consider as a successful referral???
I expect the reply from anyone who know the matter clearly and correctly please.