Product page, variants and WordPress SEO output
Compare the indexing intent of the main product with the canonical of a variant. An excluded target article does not bundle the signals as desired.
Compare the main variable product with called variant and category paths. The SEO plugin can set the preferred URL, while a customized product template also inserts its own canonical.
Where to check the setting in WooCommerce
Compare the normal product URL to a variant or category path URL. Check the canonical rule of the active WordPress SEO plugin and own additions in the theme. A variant selection alone does not justify a separate indexable product page.
Example of this specific finding
Illustrative control case: A publicly advertised product variant refers to a main product with noindex. If the main product is to appear in the search, its exclusion contradicts this intention.
follow-up audit in WooCommerce
Open a specific variant selection directly and compare it with the main product. The desired URL must match the visible product, price and selection status.
For the main product and variant separately decide which URL should be indexed. Only then canonical and indexing requirements be corrected together.
Derogations and scope
Noindex on the target does not blindly remove: the main product may have been deliberately withdrawn. Another appropriate content or removal of the variant may be required.
Regarding: WooCommerce on WordPress. Block and classic product templates as well as SEO extensions can have different output locations.
Classify the general error
Definition, system-independent causes and further correction examples: Set indexing intent for both parties