there, I was looking at the USAGE section for

Hello there,
I was looking at the USAGE section for the affiliates plugin, i see that there is a filter for unique clicks and sign up. Is there a filter or a way that i can use to filter if that sign up user become a pro site member. Because i'd prefered the filter to check if that user become a pro site member instead of just signup because by default theres a 14 days free trial.

Thanks.