Your registered influencers that you have on your campaign use links to promote your company. We track all the influencers' promotions through links - we call these links promotional links, and you can read in detail how this works here. When you create a campaign, you insert link, under "Landingpage". Here, you should insert the link to the landing page that you want the influencers' followers to enter when they promote for you. For example, your shop, a specific category, or similar.
If you check the 'Can link to subpage' box, influencers can link to a specific product and not just the page you have decided they should link to.
After that, you don't need to do anything else regarding the links, as the influencer automatically receives this link with our tracking for use in their promotion. Then, you can see how many clicks and sales are generated by each influencer.