> 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/appendix.md).

# Appendix

Learn more about the following topics:

* [Enable or disable US tax certificates  ](/salesforce-lightning/appendix/enable-or-disable-us-tax-certificates.md)
* [Contact point address](/salesforce-lightning/appendix/configure-the-contact-point-address.md)
* [Multi-currency support  ](/salesforce-lightning/appendix/set-up-multi-currency-support.md)