The best way to work with Amazon is to use Amazon module if you have API access.
To obtain an Associate Tag, refer to Becoming an Associate.
You can search by product URLs or ASINs to find the right product:
Product stock status is not automatically updated for this module. We recommend adding keywords to auto-update product lists.
Supported locales: ca, fr, de, in, it, es, uk, us.
Read more: https://ce-docs.keywordrush.com/modules/affiliate/amazon#multiple-locales