Thanks! now it works. A few minor changes where necessary: Log: Info: domoticz.urlEncode deprecated. Please use domoticz.utils.urlEncode. --domoticz.urlEncode needed to be domoticz.utils.urlEncode and Log: Error (2.4.6): ...oticz/scripts/dzVents/generated_scripts/testmessage3.lua:21: attempt to call ...

In the log I get the message : HTTP POST message TBC was sent, but I do not get the message on my phone.
If I paste the URL in the browser I do get the message on my phone.
With domoticz.notify I also get a message on my phone.
I have Domoticz version 4.9700

What could be the problem?

Hello Rob,

Is it possible to place the final code in this subject. You wrote "so i ended up doing: PS_URL = PS_httpHeader .. domoticz.urlEncode(PS_Parms)"
But where in the code do I have to place this?

Regards Robert