Like any flexible e-commerce platform, Drupal Commerce has many options you can configure to control how your store works. The checkout is a very flexible part of your store, with the ability to change the checkout process to suit your organization's needs.
This recipe will guide you through the basic items you will likely want to configure in your Drupal Commerce store.
Log in to your Drupal administration panel and navigate to Store Settings | Checkout settings.
You can now start customizing the checkout settings for your Drupal Commerce store as follows:
The view you can see indicates in which order the various elements of the checkout process appear. Firstly, ensure you have the Commerce Checkout module enabled (navigate to Site settings | Modules for this).
To re-order these, you can drag and drop each stage using the arrows icon to the left-hand side of the screen (highlighted next to the Shopping cart contents option as shown in the following screenshot):
You can also see a configure option to the right-hand side of each checkout phase. Select the one next to the Shopping cart contents phase, and you will be presented with options on how the checkout phase is displayed:
The options beneath the Display settings panel control how this panel is displayed to your customers:
Display this pane in a non-collapsible fieldset: This option is the default, and displays the checkout phase in full, with no option to collapse it from view.
Display this pane in a collapsible fieldset: This option shows the checkout phase in full by default, but provides an option to collapse it from view if the customer prefers.
Display this pane in a collapsed fieldset: This option hides the phase from the view of the customer, but allows itself to be viewed in full by clicking on it to enlarge it within the page.
Do not display this pane in a fieldset: This option removes the
<fieldset>element from around the HTML elements used to display this checkout phase, which may be of use when theming your Drupal Commerce store.
The Include this pane on the Review checkout pane checkbox underneath these options controls whether this block is shown on the checkout overview page, where the customer is required to confirm their order details.
Drupal Commerce's checkout process is divided into a series of phases. Each phase can contain one or more panes which can be used to display information (shopping cart content) or to get information from the user (billing address). If a phase doesn't have a pane assigned to it, it will not be displayed during checkout.
It's worth noting that some contributed modules can add settings to panes associated with Drupal Commerce's checkout too, such as the Commerce Addressbook module (see http://drupal.org/project/commerce_addressbook for more information on this module).