@afzal_m Apologies, I may have spoken too soon.
After playing with the payload formats on AllThingsTalk I do now see information coming in. Not quite exactly what i expected but I guess that’s down to misconfiguration on my part. So I’d say yes the connection works, parsing of data I need to look into.

And yes changing the URL on the application server works which is good news! 🙂

If you save the URL the platform sends a request with an empty body to the URL to test it. If the URL doesn‘t exist or returns a code different than 200 you can not save the URL.

Regards, Roland

@eric-barten I didn’t register the device in the att assets.

I’ve received some messages in the debug tab, but it has a delay of a day??

Now I have registered the device with the IMEI in the assets tab and I sent some test messages but I’m currently not receiving any.