Auto-Generate Shopify Blog Related Articles with OpenAI text-embedding-3-small

🪐 Use case

Automatically surface and insert the three most relevant “Related articles” at the end of every Shopify blog post to boost session depth, SEO, and reader engagement.

⚙️ What this workflow does

Pulls all published articles from a selected Shopify Blog using the Admin API. Cleans the HTML content (removes existing .related-articles blocks) and extracts text for embeddings. Generates OpenAI embeddings (text-embedding-3-small) and stores them in n8n Data Tables. Calculates semantic similarity (cosine distance) between articles to identify the top matches. Selects the Top 3 most relevant related posts for each article (configurable). Dynamically builds a `` HTML section and updates the article on Shopify. Runs on a weekly schedule to keep relations fresh as new content is added.

🧩 Setup

Create 3 Data Tables:

articles article_relations article_related_links_snapshot

Add credentials:

Shopify Admin API Access Token OpenAI API Key

Set environment variables in the Workflow Configuration node:

shopifyBlogId shopifyBlogDomain shopifyStoreName shopApiVersion percent_minimum_similarity (default 70)

(Optional) Keep or modify the Schedule Trigger (default: every week at 20:00).

🛠️ How to adjust this template

Modify the similarity threshold or number of related posts displayed. Edit the HTML snippet or CSS classes for the related section. Integrate a second OpenAI model to rewrite link titles or summaries for better UX.

💡 Ideal for

Shopify content teams and SEO strategists who want automated, context-aware internal linking to improve engagement and organic ranking.