> For the complete documentation index, see [llms.txt](https://photon-commerce.gitbook.io/photon-commerce-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://photon-commerce.gitbook.io/photon-commerce-api/update-doc-v4.md).

# Update Document

To update the values extracted by Photon Commerce

* [Update fields](/photon-commerce-api/update-doc-v4/update-fields.md)
* [Update line item](/photon-commerce-api/update-doc-v4/update-line-items.md)
* [Add line item](/photon-commerce-api/update-doc-v4/add-line-item.md)
* [Delete line item](/photon-commerce-api/update-doc-v4/delete-line-item.md)