UnityからADID・IDFAを取得 ref: https://qiita.com/satotin/items/f4afb0a08adbec26a062

file0.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class GetIdfaAndAdid : MonoBehaviour {

    [SerializeField]
    public Text DisplayID;

    // ボタンが押されると呼ばれる
    public void GetID()
    {
        Debug.Log("■■■■■GetID()■■■■■");
        // IDFA
        Application.RequestAdvertisingIdentifierAsync(
                (string advertisingId, bool trackingEnabled, string error) =>
                {
                    Debug.Log("advertisingId=" + advertisingId + " enabled=" + trackingEnabled + " error=" + error);
                    DisplayID.text = "advertisingId=" + advertisingId + " enabled=" + trackingEnabled + " error=" + error;

                }
        );
    }
}