WhatsAppSoftware group sending will not ban accounts

I'm looking for help in creating a WhatsApp software that can mass group message without getting any account banned. The messages will consist of text only and I already have a specific target group in mind. I want the software to be able to send messages from 1~3 accounts at the same time. Therefore, I need a professional to ensure that no accounts are banned while ensuring that the software runs reliably and efficiently.