> For the complete documentation index, see [llms.txt](https://help.conviu.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.conviu.com/data-editing-xml-and-csv/hide-an-element.md).

# Hide an element

It is used, for example, to hide helper elements that you use in XML and that you do not want to include in the output XML. An example is the Margin element - ie the product margin. According to this element, for example, you will set rules for bidding calculation, but you will not specify this element in the XML that you send to Heureka. See Element Hiding Rule.