I've set up a Sandbox SMS environment using the new API and I have registered a test phone number. I'm successfully sending messages but only messages with the word "test" are being delivered.
Is this a requirement of the Sandbox environment?
In my case not. I was trying to delete words Test+message+text, and all works fine. My SMS request looks like so:
https://platform.clickatell.com/messages/http/send?apiKey=FeKBZwZ3T2q3BNcjsJvHCA==&to=1234567&content=How are you Darko?
After I paste this into my Chrome web browser, I got the message with content "How are you Darko?"