https://www.appsflyer.com/glossary/gaid/
What is GAID, why it’s important and what the future holds for it? Read everything you need to know in our mobile marketing glossary.
google advertising idgaidexplained
https://support.google.com/googleplay/answer/3405269/
To improve user control, Google Play has introduced the advertising ID for apps, a resettable identifier for advertising and analytics. Ad companies may use...
google play helpadvertising id