To promote the merchant's shop, an affiliate has in hand the Affiliate link, Coupon (if assigned), and Media that the merchant has uploaded in Creatives. Those resources are provided in the affiliate account page so that affiliates can easily approach them.
The affiliate link is shown on the Dashboard of the affiliate account page after they signed up and got activated:
Merchant can also see the affiliate link of each affiliate by clicking Edit on affiliate account > Commission tab.
The coupon is also displayed on Dashboard, but it only shows if the merchant assigned a coupon to that affiliate.
Read the document about Tracking by coupon to know how to assign coupons to affiliates.
Affiliate can access media in the Marketing Tools tab:
Affiliate can view, get the embedded code or download these files.
If they click Get embedded code, they can see HTML code to embed to their website and copy the Share link linked with that image:
For affiliates who barely know about embedding code, they can download images and upload them on their post on social media or other channels, then add the share link into the post.