Thanks!

QUESTION TO ANYONE WHO CAN HELP: is it SURE that if WhatsApp is “wiped out” -for some reason- that on can get back not only the addresses but also the message and new groups that one made oneself on the WhatsApp with ALL the links posted on these groups? Please answer if you are 100% sure. I know that addresses will come back if they WERE backed up [only the telephones, not the names connected with them!![happened once to me], but I doubt the rest. DID ANYONE EVER HAVE TOI DEAL WITH THIS ISSUE?? THANKS A LOT