Someone opened my link today and buys next week. Do I still get credit?

Yes. Your link remembers them for 90 days. If they open it today and subscribe three weeks from now, you are credited.

What has to be true

They subscribe on the website, in the same browser they opened your link in. The link sets a small cookie there; that cookie is what carries your name to the checkout.

What breaks it

A different device, a cleared browser, a private window, or buying inside the app. In those cases nothing connects the purchase to you.

The safety net

Your link also has a typable code, shown on your Ambassador tab once the link has been used. Anyone can type it at checkout on any device, and you are credited the same way.