Hello, I can do this using python and selenium. Are you planning to run the program sending reports few hours during the day or 24/24 ?
My final product will be .exe application that you run. here how the application will work
once you run the application it will open webwhatsapp for you and asks you to login and asks you to input time in seconds between each report sending and the desired group to send reports at and the program will take screen shot and send to the group each X time chosen