Google sent out an email to Google Merchant Center advertisers and users that the minimum size for product images is going up to 500 x 500 pixels starting on January 31, 2027. Google recommends at least 1500×1500 pixels or above, but the minimum size requirement is 500×500, which, in my opinion, is way too small.
Google also updated the help documentation with a big notice that reads:
We recently announced new image size requirements of at least 500 x 500 pixels for all products beginning January 31, 2027. However, to ensure best performance in all listing formats, we recommend that you provide images 1500×1500 pixels or above.
Here is a screenshot of the top of that page:
If you have images smaller than 500 × 500 pixels, you will see the warning “Image too small” or “Image too small due to upcoming policy changes” in your Merchant Center account.
Here is a screenshot of the email (thanks PPC News Feed and Arpan Banerjee ):
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