What you are trying to do was made possible by this plugin that is not longer available https://wordpress.org/plugins/acf-for-woocommerce/
This plugin is not maintained by the developer of ACF.
You will need to build a way to do this yourself, the code is still available right now and you might be able to figure it out, I don’t know https://plugins.trac.wordpress.org/browser/acf-for-woocommerce/trunk
