> 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-1.2.1/extend-the-salesforce-lightning-app/customizing-the-lightning-web-components/components/dr-util-component.md).

# DR util component

The `drb2b_drUtil` is a component with no UI. This component reloads the `drb2b_addressDetails`, `drb2b_checkoutSummary`, `drb2b_drCompliance` components and get the latest values. When you load this component, it triggers an event (`CALCULATE_TAX`) to reload the `drb2b_addressDetails`, `drb2b_checkoutSummary`, `drb2b_drCompliance` components.