# Step 19: Consider recommended extensions

The Digital River app provides many optional ways to extend the OOTB features. It is highly recommended, however, that you consider the following options for your solution:

* [Mapping custom fields (LWR only)](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/extend-the-salesforce-lightning-app/mapping-custom-fields-lwr-only)
* [Add a spinner component (LWR only)](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/extend-the-salesforce-lightning-app/add-a-spinner-component-lwr-only)