> 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.

![](/files/-LvIv4EvipN_orDDB3Fo)

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