> For the complete documentation index, see [llms.txt](https://docs.trackwill.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trackwill.com/campaign/default-cost-model.md).

# Default cost model

In this field, specify the type of payment and the cost of the click at which you buy traffic. CPC - cost per click, CPM - cost per 1000 clicks. If the network transfers the cost automatically, check the Auto box.

![](https://1654950543-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LnCHMNqMqBJ0JbGpOR2%2F-LvIuRFpBjsjI3KuFaa4%2F-LvIv4EvipN_orDDB3Fo%2Fimage.png?alt=media\&token=612dadb0-4d27-4739-825f-1ea3d7b504e8)

When configuration is done click **Save** button.