By default the Back to Products URL points to the page with all products. With Replace back to products with back to previous URL checkbox you can change this behavior. This setting will replace the URL with a previous URL.
This is usefull when you are creating the product catalog with a shortcode. When the user will come to the product page from a shortcode than the Back to Products URL will point to the page where the user comes from.
When you are also using the Next & Previous URLs the behavior will be different. To avoid pointing the user to the previous product page it will point him to the last product listing page that he saw.
- The product catalog has Next & Previous product URLs enabled.
- The user comes to the product page from a category page – the back URL will point to the category page that the user came from
- The user comes to the product page from another product page – the back URL will point the user to that product listing page that he came from
- The product catalog has Next & Previous product URLs disabled.
The back URL will always point to the URL that the user comes from.