Supersonic getting started - what is Google Advertising ID

Question

I am trying to integrate supersonic, and stuck on their requrenment -

"Integrate Google Play Services The Supersonic SDK requires access to the Google Advertising ID in order to operate properly. See this guide on how to integrate Google Play Services. Note: Make sure you are using the latest Google Play Services version. Prior versions might not work on devices using Lollipop (API 21)."

That is all info, they said abot their needs. I added com.google.android.gms:play-services-ads:8.3.0 to my gradle file, and I am able to receive my Advertise id, but I am not sure, is that what i need

AdvertisingIdClient.Info info = AdvertisingIdClient.getAdvertisingIdInfo(App.getContext());

Please, if anyone integrated supersonic on android, help me to make it work, and explain what does they mean by

The Supersonic SDK requires access to the Google Advertising ID

Answer 1

Google Advertising ID is only an identification number.
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I think Supersonic leans this identifier because it is unique and therefore are unable to distinguish the installations.

I also read somewhere that if you do not use what you could also use a incremetale variable. (For example, the primary key in a database that is automatically increments)

Answer 2

The advertising ID is a user-specific, unique, resettable ID for advertising, provided by Google Play services. It gives users better controls and provides developers with a simple, standard system to continue to monetize your apps. It is an anonymous identifier for advertising purposes and enables users to reset their identifier or opt out of interest-based ads within Google Play apps.

Source

As I stated in the comments, though, I would immediately be hesitant to anything that explicitly requires something that serves ads or reads your ad preferences. I guess that's better than the alternative of not saying it's needed, but using it anyways, though.