# Custom components used in the checkout subflows

{% hint style="info" %}
**Note:** This step is used to configure the asynchronous checkout flow. If you are implementing the synchronous checkout flow, follow the steps in [Integrate the Digital River components into a synchronous checkout flow](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-a-synchronous-checkout-flow).
{% endhint %}

The Salesforce Lightning application comes with a completely functional checkout flow out-of-the-box (OOTB). However, you can choose to customize your checkout flow to suit your particular needs. This section describes how you can use the Salesforce Lightning components provided by the application in your storefront.

| Custom subflow name                                                                                                                                                                                                                                                                                                                                                        | Custom components used                                                                           | Description                                                                                  |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------- |
| [DR Shipping Address](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-an-asynchronous-checkout-flow/subflow-configuration/configure-the-shipping-address-subflow)    | drb2b\_buyerInfo                                                                                 | This custom subflow will be used in the place of OOTB subflow – Shipping Address.            |
| [DR Delivery Method](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-an-asynchronous-checkout-flow/subflow-configuration/configure-the-delivery-method-subflow)      | drb2b\_drUtil                                                                                    | This custom subflow will be used in the place of OOTB subflow – Delivery Method.             |
| [DR Checkout Summary](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-an-asynchronous-checkout-flow/subflow-configuration/configure-the-checkout-summary-subflow)    | <p>drb2b\_drUtil</p><p>drb2b\_drTermsElement drb2b\_taxIdentifier</p>                            | This custom subflow will be used in the place of OOTB subflow – Checkout Summary.            |
| [DR Payments](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-an-asynchronous-checkout-flow/subflow-configuration/configure-the-payment-and-billing-address-subflow) | <p>drb2b\_orderSummary</p><p>drb2b\_paymentDetails</p><p>drb2b\_drUtil</p><p>drb2b\_payments</p> | This custom subflow will be used in the place of OOTB subflow – Payment and Billing Address. |


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