# Add custom components to screens in the synchronous checkout flow

The Digital River Salesforce Lightning app comes with a completely functional customized synchronous checkout flow named “Sync Checkout Flow”. You may , however, choose to customize your checkout flow to suit your particular needs. This topic describes how you can use the Salesforce Lightning components provided by the application in your Checkout flow.

The table below shows the recommended components to be configured in each screen of the synchronous flow to support OOTB functionality.  Other components may optionally be added.  Consult with your Digital River team and refer to the [Customizing the Lightning web components](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.1/extend-the-salesforce-lightning-app/customizing-the-lightning-web-components.md) section to learn more about customization options.

| Custom Screen component Name | Custom Component(s) Used                                                                                                                  |
| ---------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| Shipping Options             | <p>drb2b\_drUtil</p><p>drb2b\_BuyerInfo</p>                                                                                               |
| Delivery Method Screen       | <p>drb2b\_DRUtil</p><p> </p>                                                                                                              |
| Checkout Summary             | <p>drb2b\_DRUtil </p><p>drb2b\_DrTermsElement</p><p>Drb2b\_DrTaxIdentifier</p><p> </p>                                                    |
| Payment and Billing Address  | <p>drb2b\_Payments</p><p>drb2b\_previousButton</p><p> </p>                                                                                |
| PlaceOrderConfirmation       | <p>drb2b\_Order Summary </p><p>drb2b\_DRUtil </p><p>drb2b\_paymentDetails</p><p>drb2b\_previousButton</p><p>drb2b\_placeOrder</p><p> </p> |


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