title: Magento: save custom address attribute in checkout
body: <p>This is what i did in my website: Admin-&gt;Customers-&gt;Attributes-&gt;Manage Customer Address Attributes and add a new attribute , the user can see it in his/her profile, under My Addresses option, the new attribute can be edited and is saved when creating a new address, i also can see it in the backend, and edited, until here everything is ok, my problem is in the checkout, i already have the field in the billing and shipping forms and i want the new attribute to be saved when the user click &quot;Place Order&quot; button, but, checkout seems it doesn't know nothing about the new attribute, the attribute is not saved and if i save one value from the user profile checkout doesn't load it in the field.</p>
  <p>what can i do here??</p>
  <p>thanks</p>