Fred

The solution was very simple, in case anyone else has the same problem to solve:

body.kco-one-selected #order_comments_field,
body.kco-one-selected #billing_title_field,
body.kco-one-selected #billing_adresszusatz_field,
body.kco-one-selected #billing_kundennummer_field,
body.kco-one-selected #shipping_title_field,
body.kco-one-selected #shipping_adresszusatz_field {
display: none !important;
}

Fantastic!

It works.

Thank you so much!

body.woocommerce-checkout #order_comments_field,
body.woocommerce-checkout #billing_title_field,
body.woocommerce-checkout #billing_adresszusatz_field,
body.woocommerce-checkout #billing_kundennummer_field,
body.woocommerce-checkout #shipping_title_field,
body.woocommerce-checkout #shipping_adresszusatz_field {
display: none !important;
}

Unfortunately, the fields are hidden everywhere. What am I doing wrong? I only want the fields on the KUSTOM page to be hidden?

No, I haven’t made any changes.
Thanks.

Here is the requested information:

Current version:
Version 3.3.54

Link:
https://goodphoto.de/download/test/

Password:
12345

Here is the requested image; I have highlighted the form fields in yellow.

https://www.directupload.eu/file/d/9265/eazb6sej_png.htm

Perfect! Works well! Thank you very much