Tried using the acf_form()
function inside a function hooking to the 'woocommerce_product_options_general_product_data'
action.
While it renders the entire form (including the “update” button), the fields don’t save.
Tried it both with and without calling the acf_form_head()
function beforehand (which I wouldn’t think would be necessary anyway). Tried both submitting the form by clicking the product’s “update” submit button and the “update” button rendered within the form itself.