Hi, The affiliate program or network provides you with the affiliate link. You just simply copy the link.
Alternatively, you can place the link behind an anchor word. In my experience, I think this increases conversions, simply because people get a bit scared when it comes to clicking raw links. There is not much work on the affiliate side in terms of creating the affiliate link. Simply copy the affiliate link and place it in the platform you are using, whether it be you’re Instagram or Blog. If you are talking about creating an affiliate link as a merchant, that may be a bit more complicated. This is probably why a lot of opt to run their affiliate programs with networks.