personalize a geofence

I would like to know if it is possible to personalize a geofence in the following way after having determined a corridor at each crossroads:
if I leave from point A to point D,

-A top start (alert)
-B enter the control zone (alert)
-C
-D arrive (alert)

Very specific. No, such functionality is not available out of the box currently.

But I don't really see why you can't just use normal geofences.

is it possible to customize the alert message when leaving or entering it in a geofence?

Yes, you can customize messages from templates.

how and where can I do that please ?

Check templates folder.

I re-edit the file in the folder (EntrerCoridor), I restart the service but I don't see any change in the notification on the server

$device.name EntrerCoridor at $dateTool.format("YYYY-MM-dd HH:mm:ss", $event.serverTime, $locale, $timezone)

What type of notification are you looking at?

the statut for events

Unfortunately that doesn't answer my question.

I would like to modify the notification that I receive when the vehicle crosses a geofence

I won't be able to help you if you don't answer my questions.

I am looking for the notification of events.

if that does not answer your question, please rephrase it

Which type (email, web, SMS etc) of notification are you testing?

web and telegram