yes, if the owner allows it if you are posting on a site without his permission, make sure you give value in the post before putting automated links on the site, as they usually get removed very soon.
Hello Everyone! What happens if someone clicks on the product with my ID on my aStore, and after that clicks on the same product of an other seller's aStore with the other seller's ID. If purchase happens, which partner gets the commission? And one more question: how long does Amazon track the potential customers? If some clicks on my product, but purchases a week/month later, do I get the commission for it or not? Thank you for your answers!
The latter will take the commission. Amazon tracks your cookie for a maximum 24hrs. In fact, I believe it is much more shorter as it is session cookie. Once user closes browser and opens the cookie will become invalid.