Magento 2: auto-fix missing image alt tags with product name

This n8n workflow connects to a Magento 2 store and automatically updates product images that are missing alt tags (labels). It fetches product data via the Magento 2 REST API, identifies media gallery entries with empty or null labels, and updates them by assigning the corresponding product name as the alt text.

This is useful for:

• Improving SEO and accessibility by ensuring all product images have descriptive alt tags.
• Automating manual content cleanup tasks for product catalogs.
• Keeping your store compliant with basic accessibility and usability standards.

⚙️ How It Works

• Manual Trigger
• The workflow is designed to run manually or on a schedule (can be modified).
• Fetch Product Data
• The Get All Product Skus HTTP node pulls a paginated list of products using Magento's REST API
• The Split Out and Loop Over Items nodes iterate through each product.
• Filter Products With Images
• The If node checks if a product has at least one image.
• Label Missing Alt Texts
• The Code node inspects each image's label field. If it's empty or null, it sets it to the product’s name.
• Update Back to Magento 2
• The HTTP Request (PUT) node updates each product using Magento’s V1/products/:sku endpoint, sending the updated image labels back to the store.

🧠 Use Case

Problem: Magento 2 stores often have hundreds or thousands of product images, and it’s common to miss assigning alt text (label) to all of them—especially for bulk-imported or older products.

Solution: This workflow ensures every product image has an alt label (minimum: product name), thus improving:

• Search engine optimization (SEO)
• Product discovery
• Accessibility compliance (WCAG)
• Store quality score (for marketplaces or audits)

🧪 Requirements

• Magento 2 REST API access
• A valid Bearer Token for Magento 2
• Magento endpoint URL
• Basic understanding of how your store handles image paths and media entries

🔒 Credentials Required

Magento 2 Bearer Auth: Set up as a credential in n8n using your Magento 2 API access token.

🛠️ Modifications You Can Make

• Increase the pageSize in the GET request to process more products per run.
• Set up a Cron trigger to run this regularly.
• Update other missing fields like position, disabled, or types programmatically.
• Include logging or email notifications after each batch update.

🧰 Helpful For

• Magento Developers & Store Managers
• SEO/Accessibility Compliance Teams
• Automation Engineers managing eCommerce workflows

📂 Category

E-commerce → Magento 2 (Adobe Commerce)

💬 Need Help?

💡 Having trouble setting it up or want to customize this workflow further? Feel free to reach out — I’m happy to help with setup, customization, or Magento 2 API integration issues.

Contact: Author

👤 Author

Kanaka Kishore Kandregula Certified Magento 2 Developer https://gravatar.com/kmyprojects https://www.linkedin.com/in/kanakakishore