Yandex metric. What is the USER ID for? How to use it correctly?

Question

Yandex.Metrica

Hello. Probably a stupid question, but I can't figure it out. The documentation has the ability to pass User ID from the system through userParams in its metric :

ym(12312312312321, "init", {
                    clickmap:true,
                    trackLinks:true,
                    accurateTrackBounce:true,
                    webvisor:true,
                    userParams: { vip_status: false, UserID: <?= $user ? $user->getId() : null ?> } // <--- Вот так!
                });

I insert such an initialization of the metric, but I can’t find it anywhere in the reports. Maybe I'm not using it correctly? Same in the documentation. Or I can't find how it is applied in reports and statistics. Can you explain how to use it correctly and what is it for? Thank you!

Answer 1

The help also indicates how this data can be used .