> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/commerce-api-references/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/commerce-api-references/commerce-api-reference-guide/api-structure/elements.md).

# Elements

Digital River can add new elements at any time.&#x20;

{% hint style="success" %}
Code your implementation to ignore unknown elements and values.
{% endhint %}
