You should insert your traffic sources id macro into Sub2.
This information is needed to understand the traffic quality of each source you use to generate traffic and focus on the best sources. Simply put, this information has more value to you, as an affiliate, than to us.
Here are some examples of how to use Sub2:
Example 1. Your traffic source is Facebook, then you should replace {traffic_source_id} with Facebook. The link will look like this: https://track.youhodler.com/click?offer_id=XXX&pid=YYY&sub2=facebook
Example 2. Your traffic source is the website bitcoin.com, then you should replace {traffic_source_id} with bitcoin.com. The link will look like this: https://track.youhodler.com/click?offer_id=XXX&pid=YYY&sub2=bitcoin.com
Example 3. If you work with paid traffic sources, please consult with the traffic source support or FAQ regarding which tracking macro you should use.
Example 4. If you want to share the link with your friends or relatives directly, no need to replace {traffic_source_id}, just leave it as it is and share the link. Or you can just simply delete {traffic_source_id} from the tracking link. So your affiliate tracking link will look like this https://track.youhodler.com/click?offer_id=XXX&pid=YYY