Avoiding Google penalties
A "Thin Affiliate" is a term coined by Google for websites that promote affiliate products but offer the visitor nothing extra. It is the one SEO risk that applies specifically to a store like yours, so it is worth understanding properly.
The good news first: these penalties are extremely rare, they only land on stores with no unique content at all, and your store was built to be the opposite of that.
Why your store is not a thin affiliate site
Every product title, feature list and description in your store was rewritten from the merchant's copy into something a person can read. Your homepage, About page, articles and categories were all built for your niche. That is unique content, and it was there on day one.
So this guide is mostly about not undoing it.
What is a Thin Affiliate site?
If you have ever seen a website that is nothing but adverts and affiliate links, you have seen one. "Thin" refers to the lack of unique content: no original writing, auto-blogged pages, poorly generated content.
Google defines it as follows: "Thin affiliate pages are pages with product affiliate links on which the product descriptions and reviews are copied directly from the original merchant without any original content or added value."
Why Google penalises them
These sites offer nothing. The products can be bought elsewhere and nothing has been added, so the visitor is left frustrated. If Google let them rank, its results would fill with them and people would search somewhere else. That is why the policy exists.
How you would know
Traditionally Google applied a "-50" penalty, which pushes a site fifty places down for every keyword. You would also see it inside Google Search Console for that store, under manual actions, and Google will usually email you as well.
Keeping well clear of it
Add your own value on top of what the store built. Real opinions, helpful advice, a comparison you actually made.
Value is not only articles. Videos, lists of recommended products, comparisons, images and downloads all count. Pressure cooker store? A downloadable recipe PDF is value. Digital camera store? A cheat sheet of common functions.
Write it properly and never copy content from anywhere else. Your Recommendations page already asks you to look over your content before the store goes live, which is the moment to do it. You only get one chance at a good first impression.
One warning about domains: if you are reusing an old one, it may already carry a Thin Affiliate penalty or another manual action. This is common with dropped and expired domains, and you inherit the problem along with the domain.
The content-to-page ratio
Think about how many unique content pages your store has compared to its total. Thousands of products and three pages of content is a very low ratio. A handful of new articles moves it a long way, and the Article Writer produces those in minutes.
Will SEO and link building protect me?
Not on their own. If a store has a Thin Affiliate penalty, no amount of SEO or link building will lift it. Content is the only fix.
If it has already happened
Fix the store first. Add genuinely good content and work through the rest of the Playbook. Then submit a reconsideration request through Google Search Console, admitting that the store was not offering value and explaining what you have changed.
Be apologetic in tone. Show that you have read Google's guidelines and now understand them.