Rebuy + Stamped

Rebuy's personalization engine integrates with Stamped, so your star ratings and review counts appear inside Rebuy's upsell, cross-sell, Smart Cart and post-purchase offers. Shoppers see social proof for a recommended product at the moment they are deciding whether to add it.

Key Benefits

Platform: Shopify
Built and supported by: Rebuy. Configuration happens in the Rebuy admin, not in Stamped. Please contact Rebuy here with any questions.
Requires: Shopify Metafield Syncing enabled in Stamped (Settings > Syndication)
Displays: star rating and review count, plus review snippets in supported widgets

In this guide

• How the integration works
• Before you start
• Activating the integration
• Where ratings can appear
• Styling the stars
• Troubleshooting
• Who to contact for what

How the integration works

• Rebuy does not read ratings from the Stamped widget on your product page. It reads them from Shopify product metafields that Stamped writes to your store:
  • stamped.reviews_average
  • stamped.reviews_count
• The chain is: reviews live in Stamped, Stamped syncs them into Shopify metafields, and Rebuy displays what is in those metafields. If the metafield sync is off or the values are stale, Rebuy will show no stars or a count that disagrees with your product page, even though the reviews themselves are available in Stamped.

Before you start

1. Stamped is installed and configured on your Shopify store.
2. Shopify Metafield Syncing is enabled in Stamped, under Settings > Syndication. This is the step most commonly missed. If it has never been enabled, your products have no Stamped review metafields for Rebuy to read. Allow up to 24 hours after enabling for metafields to populate across your catalog.
3. The products you want stars on have published reviews. Products with no published reviews show no stars, which is expected behaviour.

Activating The Integration

Complete in Rebuy admin:

Open Rebuy Admin and select Integrations from the left-hand menu.

Find Stamped.io and toggle the integration ON.

Go to the Widgets tab and create or edit the widget you want ratings on.

In the widget editor, scroll to Integrations and enable Stamped Reviews.

Click Save.

Note: enabling the integration globally is not enough on its own. Stamped Reviews has to be switched on for each widget or surface where you want ratings, and those toggles are off by default.

Where ratings can appear

Rebuy supports Stamped ratings on more surfaces than widgets alone. Each is enabled separately in Rebuy:

• Rebuy widgets - upsell, cross-sell, Smart Cart and post-purchase offers. Enabled per widget as described above.
• Smart Collections - go to Smart Collections > Template & Settings > Collection Template Editor, open Product Reviews under General Settings, connect Stamped if it appears under "Not Connected", then enable its toggle and save. Enabling a review provider here also unlocks sorting by Highest Rating and Lowest Rating.
• Smart Search results page - go to Smart Search > Results Page, open Product Reviews, connect or enable Stamped, and save.

On collection and search surfaces, Rebuy displays only the star rating and review count, not the written review content.

Styling the stars

For widgets and Smart Cart, go to Dashboard > Manage Rebuy Theme, open Product Reviews, set the star color to match your branding, and save.

Smart Collections and Smart Search have their own Styling cards, where you can set star size (small 12px, default 16px, large 20px), review text color, filled star color and empty star color. Reset to theme restores the Rebuy theme defaults, and further changes are possible through Rebuy's Custom CSS block.

Note: Rebuy renders its star rating as an image, so CSS added in the Stamped dashboard will not restyle it. Star appearance must be changed on the Rebuy side.
 

Troubleshooting

• No stars anywhere. Check both toggles: the Stamped.io integration under Rebuy > Integrations, and Stamped Reviews inside the specific widget or surface. Disabling and re-enabling the Stamped integration in Rebuy also resolves cases where a widget was configured before the integration was switched on.
• Stars on some products but not others. Those products either have no published reviews in Stamped, or have no Stamped review metafields assigned in Shopify. Check the product in Shopify under Settings > Metafields and metaobjects > Product metafields for stamped.reviews_count.
• The review count on Rebuy does not match the one on my product page. The metafields are stale. Confirm metafield syncing is enabled under Settings > Syndication in Stamped, then contact Stamped support to trigger a manual re-sync. Once it completes, clear the metafields cache from Rebuy's Data Source tab so Rebuy picks up the refreshed values.
• Metafields are missing or will not refresh. There is no self-serve metafield re-sync in Stamped. Contact Stamped support, and we will run it for your store.
• The "Add definition" button appears next to the Stamped metafields in Shopify. This only means no Shopify metafield definition has been created. The metafield values are still present and usable, and Rebuy can still read them.
• Stars show, but the review count is missing. If your Rebuy template uses Stamped's star rating badge instead of the native integration, the count may be hidden by your theme's CSS. Removing that CSS restores it.
• Widget labels are not translated on a multilingual store. Text such as "Reviews" within a Rebuy widget or Smart Cart is rendered by Rebuy and translated on Rebuy's side.

Who to contact for what

This integration spans both products, so issues can bounce between support teams. 

Contact Rebuy for: anything about how the stars render or where they appear, widget and Smart Cart configuration, star styling and size, translated labels, Rebuy's data source cache, and Smart Collections or Smart Search setup.

Contact Stamped for: review data itself, enabling Shopify Metafield Syncing, and manual metafield re-syncs.