Do you have some specific question? The error message seems pretty clear to me.
So I can't use that command? How do I do it to be supported? I don't understand that
Not supported. To support you need to implement it in the code.
Is there any guide on how to do it?
No, but plenty of examples in the code. Just search.
ok, what is not clear to me is which code should I download?
Then you probably shouldn't attempt it yourself.
I only ask you if it should be the traccar server or traccar web, how heavy are you
OK, but it's going to be my last answer in this thread. Obviously it has to be done on the backend - traccar repository.
I have linked my gps through port 5001, everything is correct, it appears online in my demo2, but when I send a command through the api it gives me the following error
post to endpoint https://demo2.traccar.org/api/commands/send :
{ "id": 0, "deviceId": 1931, "description": "test client id", "type": "deviceIdentification", "attributes": {} }