When products are synced the titles have characters like “&” encoded improperly once they arrive in the Facebook store.
This is unfortunate you are experiencing this. Can you kindly share the following:
URL of the product on your WooCommerce Store
URL of the same product that is on Facebook store
We’d like to try to replicate the issue on our own site to help with troubleshooting.
Something else that might help is to rule out a plugin or theme conflict. Can you disable all the plugins aside from WooCommerce extensions and switch to a default theme like Twenty Twenty-One or Storefront and see if the issue persists?
If doing this on your live site is not possible, can you create a duplicate site? We suggest using WP Staging if your hosting provider does not offer a staging server as an option.
Looking forward to your reply. Feel free to get back to us in case you have any additional questions!