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

Description

🪐 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.