How to Add Custom Fields to Shopping Cart Front End

When the product is shipped I want to add the " Carrier" and " Tracking No" so that customer can track that in the shipping tab. There seems to be no doctype for the shipping ?

Are you looking for Delivery Note?

Well, in Delivery Note Shipper and Vehicle No field is already there, but it is not visible to the front end customer.

Dear all,

any further input on this subject? I’m trying to do the same, to allow the Shopping Cart customer to add his own PO Reference before placing the Order, and then have it passed into the ERPNext Backend Sales Order.

I was thinking if the Shopping Cart Form would be accessible in the ERPNext Desktop - Setup - Customize - Customize Form, then we could add and link additional fields.

Are there any such options?

Thanks, David