> 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-1.5/extend-the-salesforce-lightning-app.md).

# Extend the Salesforce Lightning app

Learn about the options available to extend the Salesforce Lightning app.