I'm currently using CS-Cart version 4.5.2 and for some reason non of my product pages have canonical url's or tags. Please let me know how to enable it as it should be there automatically. Here is one of the pages that don't have the canonical url but I have over 50K pages that don't have it.
If you're talking about the path style, its a preference in the SEO Addon (I'm assuming you're using it). You might need to re-enable the add-on, or revise your settings.
You can also choose to remove the page extensions (.html)
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Please contact us via Help desk and provide access to your server so that we could examine the issue.
Do you have any addons which extend default SEO?