How to Export and Import Product Reviews into Google Shopping

1) Before you start (requirements)

Merchant Center account with your website verified & claimed.

Enrolled in the Product Ratings program (Growth/Programs → Product ratings → “Get started”). Google asks for at least 50 product reviews across your catalog to be eligible and for ongoing monthly uploads.

Strong product identifiers in both your product feed and your review feed:

• Prefer GTINs; Google matches reviews to products primarily by GTIN. If GTINs aren’t available, Google will try Brand+MPN, SKU, and product URL, but matching is weaker. 
• Ensure the product_url domain matches your claimed domain in Merchant Center.

Tip: Stars won’t show instantly. New uploads can take 7–10 days to sync. First-time onboarding can take 2–4 weeks.

2) Export the XML file from your module

In your PrestaShop Back Office, open Modules → Product Reviews.

Go to the Reviews & Ratings page.

Click “Export all reviews for Google Shopping” (the XML export icon).

The module returns a Google Product Ratings XML file containing your current reviews. Save it (e.g., reviews_YYYYMMDD.xml).

Optional: Host this file at a stable URL on your server if you plan to use Scheduled fetch in Merchant Center.

Note: Google’s Product Ratings feed expects the full set of reviews each time; reviews not included in the next upload are treated as removed.

3) (Optional but recommended) Quick validation checks

Your XML should follow Google’s Product Review Feeds XML schema (v2.4). Key points:

• Top-level <feed> includes <version>2.4</version>, <publisher>, and <reviews>.
• Each <review> contains at least: <review_id>, <reviewer><name>…</name></reviewer>, <review_timestamp>, <content>, <review_url>, <ratings><overall min="1" max="5">X.X</overall></ratings>, and <products> with either <product_url> and/or <product_ids> (GTINs strongly recommended).

Where to check the schema & samples: XML Schema Reference and Sample Feed File from Google Developers.

4) Add the reviews feed to Merchant Center (GMC Next)

Sign in to Merchant Center.

In the left menu, go to Analytics → Reviews → Product reviews.

Click Product review data sources → Add product reviews.

Choose an input method:

• Enter a link to your file (recommended: Scheduled fetch). Provide the URL (http/https/sftp) and set the fetch schedule.
• Or SFTP / Google Cloud Storage.
• Or upload a file from your computer.

Click Continue, then complete the setup (schedule and authentication, if needed).

Note: Google requires you to upload/update at least monthly to remain eligible. File size must be < 4 GB (zip allowed, with each contained file being valid XML). 

5) Monitor processing & fix any issues

Go to Analytics → Reviews → Product review data sources and open your feed:

• Latest update: see counts and any item issues (errors/warnings).
• Your setup: view/edit schedule and file location.

Use Product Reviews Diagnostics to see statuses: Ready to serve (good), Needs review (missing recommended IDs), Disapproved (errors to fix).

Common fixes:

• No stars showing: ensure you’ve met the 50-review minimum, completed onboarding, and that GTIN/Brand+MPN in the product feed match those in the reviews feed.
• Domain mismatch: make sure <product_url> uses the same domain you verified/claimed in Merchant Center.
• Invalid XML: validate against Google’s XSD; correct structure & encoding.
• Removing a review: exclude it from your next full upload; Google removes reviews not present in the latest feed.