Sales channel, product variants and storefront head
Compare following pages of the product list with their actual item selection. An overwritten canonical template must not ignore the page parameter.
Compare the active domain of the sales channel with product and variant addresses. Then check if the theme or extension changes the canonical output. A proper SEO URL in the backend does not yet prove the right head of the storefront.
Where to check the setting in Shopware
In the product, check the SEO setting for a common canonical URL of the variants. Then compare the selected variant, the sales channel domain and the canonical in the Storefront head. In the case of own Twig edition, no second contradictory day may arise.
Example of this specific finding
Illustrative control case: /Category/? page=2 shows other products as page one, but refers to /category/ via canonical. The content is not identical.
follow-up audit in Shopware
Retrieve the same product in the affected sales channels and with a specific variant. Document channel assignment and desired main product.
Treat each independent following page with a suitable canonical URL and keep it accessible via retrievable links. Check product distribution and link path.
Derogations and scope
A true full view-all page requires a separate decision. Not every page-two URL has to get the same rule without looking at the content.
Related: Shopware 6 with Storefront. Self-hosted and SaaS offer different access and configuration options; view your own headless frontends separately.
Classify the general error
Definition, system-independent causes and further correction examples: Subsequent pages are not automatically duplicates of page one