We are quite new to Odoo and generally, everything works very well, but I am not entirely satisfied with the invoice, quotation, and delivery note templates.

If a phone number is stored in the contact to which the invoice is supposed to be sent, then the phone number is always printed in the template as well. I would like to remove this with Odoo Studio. I have found the respective template and removed the phone number from the code. However, unfortunately, when I print a quotation, for example, this phone number is still displayed.

Is there any documentation on how to do this properly with Odoo Studio?