Hi dear, thanks for your reply! Here are my comments:
1. Are you using any plugin to create the custom fields? Also, tell us which custom field you want to add on a single product page.
— I used acf before, but it doesn’t work so I deleted it. Now I don’t use any plugins of custom fields but I can see there is custom fields options in the product page, here I attached an image for your reference.
2. Are you using a custom product layout with a theme or the default WooCommerce product layout?
— Yes I am using a custom product layout. Please see a screenshot attached too.
Here I also provide the login info in case you need it. Thanks!
Attachments:
You must be
logged in to view attached files.