Hello @RowenaT,
For the product blocks you are using, are you using the setting of Populate from Feed or Select from Catalog?
If you were using the Populate from Feed option, the products that are automatically be pulled into your emails should reflect the most up to date information synced from your product catalog. Keep in mind that should you update a product’s information, this would not be reflected in emails that were already sent out. These changes would only be reflected for those customers since the product update.
In the event your product blocks are using the Select from Catalog function, since this setting allows you to manually select your products from your catalog and also set their display title, image, and price while still linking to the product; these product details would not dynamically update on their own.
Both of these settings are elaborated further in the How to Insert a Product Block article. In the event your product block using the Populate from Feed function is not working as expected, this may also indicate some sync delays between your product catalog and Klaviyo. Although updates from your catalog are pushed to Klaviyo fairly routinely, it can take upwards of an hour for these new updates to fully sync and be actualized within Klaviyo.
Thanks for being a part of the Klaviyo Community!
-David