> For the complete documentation index, see [llms.txt](https://support.caasie.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.caasie.co/best-practices/glossary-of-terms/h-m.md). # H - M #### Hourly Budget Guide The hourly budget guide on the CAASie map is a rough estimate of how much you should budget to run your campaign, based on your selected screens/boards. It is a guide only, and it is calculated based on the average cost of play across all the screens and with an aim to deliver roughly one ad every 2-5 mins. #### Impression An Impression is when an ad is viewed by a viewer. A single ad play may be viewed by multiple people at the same time, and multiple ad plays may be seen by the same individuals repeatedly. Each view, whether it is unique or not, is counted as an impression. If you have questions about a definition, please contact for assistance.