> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/adobe-commerce-extension/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/adobe-commerce-extension/2.1.1/appendix.md).

# Appendix

## Exhibit A: Eligible tax group, type, and code

[Click this link](https://docs.digitalriver.com/digital-river-api/product-management/creating-and-updating-skus#tax-code) to learn which tax codes are available in the Digital River API. 

## Exhibit B: Sequence diagram 

{% file src="/files/-MWf2D39k5icPpyqJMfZ" %}
Click here to see the sequence diagram.
{% endfile %}