If your godchild uses the referral link (accessible from the "Godchildren"/"Referral link" menu) that you have given to him/her, he will automatically be attached to you — for life.
Otherwise, when registering, he/she needs only to manually enter your sponsor code and/or your email address, and their client profile will be attached to yours.
Your sponsor code is contained in your referral link, after the root "http://atrad.io/register/".
For example, If your referral link is http://atrad.io/register/lastname247891, your referral code is lastname247891 .

<-- What tools can I use to help me sponsor?

How do I check up on my godchildren? -->