Why I got user name Subscriber at Viber chat API?

Question

When users subscribe to my Viber PA I make a request to https://chatapi.viber.com/pa/get_user_details And get back strange user.name

[user] => Array
    (
        [id] => ***
        [name] => Subscriber
        [avatar] => http://dl-media.viber.com/1/share/2/long/bots/generic-avatar%402x.png
        [primary_device_os] => iOS 12.0.1
        [api_version] => 7
        [viber_version] => 9.9.1.28
        [device_type] => iPhone7,2
    )

Subscriber? And it is not only one user! What is it? Any suggessions?

Answer 1

You should turn on this setting in Viber app for every Viber user who has this problem:

Privacy - Personal Data - Allow Content Personalization