Prosper202 gives every click its own id. ClickBank carries that id in its extclid field and sends it back when a conversion happens, so the sale is credited to the click, its traffic source and its cost.
1. Put the click id on your offer URL
In Prosper202's campaign setup, add this to the ClickBank link you were given, keeping your affiliate id and the other parameters as they are:
extclid=[[subid]]Unique external click ID, up to 256 characters. tid is the older tracking field.
2. Receive sales through Instant Notifications
Prosper202 receives ClickBank's Instant Notifications and reads extclid from each one. They carry rebills, refunds and chargebacks as well as sales, so Prosper202 records every rebill and takes a refunded sale back.
- In Prosper202, open Account › API integrations › ClickBank and save your ClickBank secret key. The card shows your INS URL:
https://your-tracking-domain.com/tracking202/static/cb202.phpon your own domain. - In ClickBank (Vendor Settings › My Site › Advanced Tools), enter that INS URL and the same secret key, then send a test notification. The ClickBank card in Prosper202 shows the key as verified once a test arrives.
Prosper202 reads the order's tracking code (tid=[[subid]] on the HopLink) first, and extclid when the order has none, so either field works.
3. Test it before you send traffic
Click your own tracking link once, then check that the click arrived and that a test conversion finds it. On an install with Prosper202 ClickServer Pro, p202 conversion simulate runs the whole loop for you. If a conversion doesn't show up, see Conversions Not Showing Up.
Things that trip people up
- ClickBank doesn't store an invalid extclid, so a value with " < > [ \ ] ^ ` { | } in it simply disappears. Prosper202's click id is a plain number. Source
- Instant Notifications aren't switched on by default; ClickBank has you request them. Source
- extclid comes back only in version 8 of Instant Notifications, so choose that version. Source
- ClickBank also offers postbacks, under Integrations › Postback/Pixels. Prosper202's Instant Notification integration is the one that also records rebills and takes refunds back. Source
Where this comes from
The ClickBank details on this page were checked against these pages. Networks change their links and tokens, so if something here no longer matches what ClickBank shows you, tell us.
- Affiliate Tracking Parameters (official; checked Nov 13, 2026)
- Instant Notification Service (INS) (official; checked Nov 13, 2026)
- Postback/Pixels Integration Guide (official; checked Nov 13, 2026)
Every network's field is in Common Network SubID Parameters.