How to View customer registration information on order -> account infromation block (backend)

Question

According to this example Add new field in magento(1.9) customer registration

How can I show the customer License Number on admin panel order view page (account information tab)?

Answer 1

In addition to adding the customer attribute as explained in Add new field in magento(1.9) customer registration you have to add a new attribute on the quote and the order called customer_licence_number. (add them as columns to the tables sales_flat_quote and sales_flat_order). The prefix customer_ is very important.
Then you have to add in the config.xml of you module, under the tags <config><global><fieldsets> this:

<customer_account>
    <licence_number>
        <to_quote>customer_licence_number</to_quote>
    </licence_number>
</customer_account>
<sales_convert_quote>
    <customer_licence_number>
        <to_order>*</to_order>
    </customer_licence_number>
</sales_convert_quote>

this should make magento copy the value of licence_number from the customer to the quote and from the quote to the order.
And because the attribute code starts with customer_ it will be displayed in the order details page right up there with customer name, email, DOB and others.