How do I set up tracking?

From the program’s “Tracking & stores” page, best first:

• Connect your store — WooCommerce, Shopify or Stripe in one click. Every paid order is reported with no code, and it can’t be blocked.
• From your server — a signed report with your secret. Copy the code for Node, Python, PHP or Ruby; your credentials are already in it.
• The browser tag — for a site with no server, such as a React site taking bookings. Paste one line, then report the action when it succeeds.

Then watch “Is it working?” on the same page: every report arrives there within seconds, with why it did or didn’t pay.