Hi Rodolfo, I don't have access to gps-server cloud platform server as this is paid service. I copy the screen showing the message recorded in the platform below.

Hi Anton, finally I found the fact that my cloud gps platform has io parameter cache which makes old ios are copied into new messages. After clearing cache, now traccar has complete ios sent by teltonika.
Hi Sasa, I am currently having a similar problem with my teltonika device. in this case traccar doesn't show the "io253" attribute but shows an "event" attribute with value "253". My traccar deployment doesn't generate the harsh events alarms anymore so i wanted to use computed attributes to fill that void. I want to know if there's anything I may be missing on my configurator. Thank you
IO 253 should be mapped automatically to an alarm:
Hi Anton, huge fan of your work. Yes, it ought to be mapped automatically to an alarm. I mean, it did until a month ago, my co-worker made some changes to the green driving thresholds on teltonika's configurator and it stopped working properly. I inspected the positions payloads since then and I keep seeing the "event" attribute with value 253 but no alarms are being generated. I practically have no idea what's going on. So I thought maybe there's something i was missing on my device configuration.
If you don't see the value, then most likely device is not sending it. Event code is something else.
Sasa, could you send the RAW message and the JSON message that includes the io254?