> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/salesforce-lightning/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.3/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/configure-the-main-checkout-flow.md).

# Configure the main checkout flow

To configure the main checkout flow:

1. Click **Setup** ![](/files/gdWiI90IBsNQrB7jE9u2).
2. Type `Flows` in the **Quick Find** field and click **Flows**.\
   ![](/files/Tz5hQH4WDZg2sDEw1y1P)
3. Click **Checkout Flow Template**. The Flow Builder opens in a separate tab.\
   ![](/files/QKU8CH5wN7WdTVEYsYX4)
4. Create the subflow element for all the custom subflows (for example, the [DR Shipping Address](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.3/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/subflow-configuration/configure-the-shipping-address-subflow.md), [DR Payment and Billing Address](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.3/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/subflow-configuration/configure-the-payment-and-billing-address-subflow.md), [DR Checkout Summary](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.3/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/subflow-configuration/configure-the-checkout-summary-subflow.md), and [DR Delivery Method](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.3/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/subflow-configuration/configure-the-delivery-method-subflow.md)) created in the previous steps.
   1. Drag the **Subflow** element from the left panel to the right panel.
   2. Type the custom subflow name (for example, `DR Shipping Address`) in the **Reference Flow** field and click the item (for example, **DR Payment and Billing Address**) in the search results.
   3. Type the name of the subflow in the **Label** field (for example, **DR Payment and Billing Address**).\
      ![](/files/wu0OHTx37NO6fpNeWIwI)
   4. Type the appropriate value listed in the [subflow settings table](#subflow-settings) for the custom subflow in each field. The following example shows the settings for the DR Payment and Billing Address subflow.\
      ![](/files/Te9hX6qgTLf7E1Jk2fhx)
   5. Under **Set Input Values**, toggle **cartId**, **currentState**, **nextState**, **orderId** (if applicable) to **Inlude**. Toggle **Saved\_Tax\_Identifier** (if applicable) to **Don't include**.\
      ![](/files/ry52PYx1YHsZ6fUmVkdQ)
5. Replace the OOTB flows with custom flows.
   * **Shipping Address**: DR Shipping Address
   * **Delivery Method**: DR Delivery Method
   * **Checkout Summary**: DR Checkout Summary
   * **Payment and Billing Address**: DR Payment and Billing Address\
     ![](/files/pduMz7OnueDX4KHv4aQf)
6. Click **Save As** and enter a name for the main checkout flow.\
   ![](/files/Z5LZ9yzWK7jHsz0JdyRB)
7. Click **Save**, then click **Activate**.

## Subflow settings

| Subflow                        | Settings                                                                                                                                                                                                                                                                       |
| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| DR Shipping Address            | <p><strong>Cart Id</strong>: <code>{!cartId}</code><br><strong>Current state</strong>: {<code>!mainCheckoutSession.State}</code><br><strong>Next state</strong>: Inventory</p>                                                                                                 |
| DR Delivery Method             | <p><strong>Cart Id</strong>: <code>{!cartId}</code><br><strong><code>Current</code> state</strong>: {!<code>mainCheckoutSession.State}</code><br><strong>Next state</strong>: Taxes</p>                                                                                        |
| DR Checkout Summary            | <p><strong>Cart Id</strong>: <code>{!cartId}</code><br><strong>Current state</strong>: {!<code>mainCheckoutSession.State}</code><br><strong>Next state</strong>: Cart To Order<br><strong>Saved\_Tax\_Identifier</strong>: {!Saved\_Tax\_Identifier}</p>                       |
| DR Payment and Billing Address | <p><strong>Cart Id</strong>: <code>{!cartId}</code><br><strong>Current state</strong>: {!<code>mainCheckoutSession.State}</code><br><strong>Next state</strong>: Activate Order<br><strong>Order Id</strong>: <code>{!mainCheckout</code><br><code>Session.OrderId}</code></p> |