Link [link] Field for Product Feed

Required for each product (Google & ChatGPT)

The link attribute defines the landing page for your product. When users click on your product in Shopping ads or listings, they are redirected to this URL.

When to use

If you only submit the link attribute, all users (desktop and mobile) will be directed to that URL.

⚠️ If you also provide an ads_redirect URL, it will override link for Shopping ads. Free listings will still use link or mobile_link.

Format

• Type: URL (ASCII only, must start with http:// or https://, RFC 3986 compliant)
• Limits: 1–2,000 characters
• Repeated field: No
• Schema.org property: Offer.url

Example values:

Minimum requirements

Note: Submitting an invalid or unreachable URL can result in disapproval.

• Ensure the landing page is mobile friendly.
• Start with http:// or https://.
• Use a verified domain.
• Ensure the URL is crawlable by Google.
• Encode special characters (& → %26).
• No registration or sign-in should be required.
• Use redirects only if legally required.

Best practices

• Use a stable URL that doesn’t change often.
• Pre-select the correct product variant.
• Use mobile_link for separate mobile pages.
• Avoid ValueTrack parameters in link. Use ads_redirect instead.
• Minimize redirects for faster page loads.
• Use Schema.org microdata to reflect accurate product variant.
• Use canonical_link if you include tracking in the link field.

SEO Tip

Avoid redirects where possible, also 404 pages are a NO GO in feeds and SharpFeed will help you spot that. Use verified domains and structured data to help Google understand the final landing page.

Official Source : https://support.google.com/merchants/answer/6324416