CAN_mileage as resource for Maintenance Km

Hello!

if you mean about value in field "Current mileage" at Service Intervals in unit's settings the value is defined on current counter mileage value - field 'Current value' in unit's counters
So if you set up mileage counter  mileage sensor which based on parameter CAN_milieage.

There is such algorithm in Wialon, but we will pay attention and  analyze possibility to implement new method
Here is similar topic https://forum.gurtam.com/viewtopic.php?id=14295, so you can post you idea, any comments too