Find product images that are too small for Google with Google for WooCommerce 3.9.6
Starting January 31, 2027, Google requires main product images to be at least 500 × 500 pixels. Google for WooCommerce 3.9.6 checks your synced products and shows a notice on Marketing > Overview if any of them fall short, so you can fix them before they stop appearing in ads and free listings.
The check runs in the background and covers every synced product, including variations. Once you replace an image and save the product, the notice clears within about an hour. If you dismiss it, it comes back after seven days as long as small images remain. The notice links to Google's image requirements...