@marcia-oliveira — There could be many reasons for this.
If only some of your products are missing from your Facebook shop, then this may be due to some of your products being out of stock or being virtual products.
https://docs.woocommerce.com/document/facebook-for-woocommerce/facebook-for-woocommerce-products-are-not-displaying-in-facebook-shop/#cause-of-out-of-stock-products-not-showing
https://docs.woocommerce.com/document/facebook-for-woocommerce/facebook-for-woocommerce-products-are-not-displaying-in-facebook-shop/#virtual-products
If you nevertheless believe the products should be showing in the shop, but they aren’t, try reconnecting by following this process:
https://docs.woocommerce.com/document/facebook-for-woocommerce/facebook-for-woocommerce-how-to-re-connect/
If that fails, try this process after:
https://docs.woocommerce.com/document/facebook-for-woocommerce/facebook-for-woocommerce-delete-or-reset-all-facebook-products/
Also, could you please send me a copy of your site’s system status report? You can find it under WooCommerce > Status in the dashboard. Click “Get system report” and then the “Copy for support” button. Once you’ve done that, paste it into your reply.
Thanks!
We haven’t heard back from you in a while, so I’m going to mark this as resolved – if you have any further questions, you can start a new thread.