--- title: Scans weight: 12 lang: en --- Scans are the heart of kilometer tracking - they connect [runners](../runners) with the distance covered. There are two types of scans in the system: "Fixed Distance Scans" and "Track Scans". Fixed Distance Scans can only be created by users in the runner system and assign a fixed distance to a runner. This is particularly useful when runners have lost cards halfway or receive a distance bonus for other reasons. Track Scans, on the other hand, can only be generated by a scanning station scanning the code of a runner's card, thus creating a new scan. Track Scans are always linked to a runner and a [track](../tracks), from which the distance is derived. ## Creating > You can only create Fixed Distance Scans in the runner system. To create a new scan, open the `Scans` page in the runner system. You can create a new scan using the `Create Scan` button. You must assign a runner and a distance in meters to the scan. Once you have provided all the information, you can create the scan using the `Create` button. ## Editing To edit a scan, you can click the `Details` button for the desired scan in the scan overview. ### Fixed Distance Scans In the scan detail view of Fixed Distance Scans, you can adjust the validity, runner, and distance. When you are done, simply click `Save Changes`. ### Track Scans In the scan detail view of Track Scans, you can only adjust the validity - all other values are fixed in the system. When you are done, simply click `Save Changes`. ## Deleting You can delete a scan either from the scan overview or the scan detail view. We generally recommend deactivating scans rather than deleting them to prevent human errors. ### In the Scan Overview Click the `Delete` button for the desired scan. You will then be asked whether you really want to delete the scan or cancel. ### In the Scan Detail View Click the `Details` button for the desired scanning station. At the top of the page, there is now a `Delete Scan` button. You will then be asked whether you really want to delete the scanning station or cancel.