Why the Program Can't Detect the Sent Massages on Android?

It mainly because you're using Advanced Messaging provided by AT&T, you can try to turn the advanced messaging off and then try our program again.

Below is the detailed steps to turn off Advanced Messaging function on your Android device:

Step 1. Find and click on "Messages" in the phone's Home Screen.

open messages on android

Step 2. Directly tap on the Menu icon in the top-right corner on the Messages window.

Step 3. Select "Settings" in the Menu drop-down list.

select settings in the messages app

Step 4. Now, select "Advanced Messaging" and turn Advanced Messaging "off".

turn off advanced messaging option

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