> For the complete documentation index, see [llms.txt](https://docs.emaildelivery.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaildelivery.com/docs/what-to-know-before-using-the-email-marketing-platform/properties-are-created-dynamically.md).

# Properties are created dynamically

You don't create a new property through a property manager, you just add it to a contact, and it exists.