> For the complete documentation index, see [llms.txt](https://ymq-app.gitbook.io/ymq-upsell-and-cross-sell/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ymq-app.gitbook.io/ymq-upsell-and-cross-sell/upsell-editor/how-to-add-upsell.md).

# How to add upsell