How can Marriott invite friends to log in without a password?

First, open the app of Wang Hao Hotel, and then log in the member information. Specifically, you can log in to the member's mobile phone number or member ID number. The information at the time of registration shall prevail. Log in to the member's mobile phone number, and then enter the login password to log in to the Marriott Hotel member. I hope my answer is helpful to you.