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Northwind
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Copy the widget snippet, or on WordPress install the official plugin and paste an API key. Then allow the site domain.
Copy the widget snippet from the dashboard.
Start in Settings → Code injection, in the Site Header field.
In Channels, paste the widget snippet from the dashboard.
Add the site domain to Allowed Domains on the Web widget tab. Without that, the widget does not load.
WordPress has the official plugin. Every other platform is a snippet you paste. None of them copy a product catalog.
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