We are building a shop on Shopify we are wanting to add custom fields to the "my account" page that a user views once they are logged in. Currently it shows their order history and they can add/edit their billing/shipping addresses.
I wanting to allow users to edit their email address and add other fields they can update.
I am also wanting this imputed information to be seen in the "customers" page in the Shopify dashboard for admin use or possibly on orders themselves.
We are currently using a 3rd party app but I need to get this information to appear in other places.
My question is, what is the best method, or easiest to add custom fields POST/GET in Shopify.
All help is greatly appreciated!