Logging Ad Response Info ID to Crashlytics
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Firebase
Crashlytics
is a lightweight, realtime crash reporter that makes it easy for you to manage
stability issues in your app. Crashlytics saves you troubleshooting time by
intelligently grouping crashes and highlighting the circumstances that lead up
to them.
This guide describes how to integrate Crashlytics into your Unity project so
that you can log ad response IDs. Later, when you troubleshoot crashes in your
app, you can look up the ad response IDs and use the Ad Review Center in
AdMob
to find and block the ads.
Step 1: Add Firebase to your Unity app
Follow the Firebase Unity integration
guide
to
integrate Firebase Crashlytics into Unity.
Step 2: Log the ad response ID
-
Create a MonoBehaviour script and initialize both AdMob and Firebase SDKs.
Use the boolean isCrashlyticsInitialized
to monitor when Crashlytics
initializes.
using
GoogleMobileAds.Api
;
using
Fabric.Crashlytics
;
...
public
class
GameObjectScript
:
MonoBehaviour
{
bool
isCrashlyticsInitialized
=
false
;
public
void
Start
()
{
....
// Initialize Google Mobile Ads SDK.
MobileAds
.
Initialize
((
InitializationStatus
initStatus
)
=
>
{});
....
// Initialize Firebase
Firebase
.
FirebaseApp
.
CheckAndFixDependenciesAsync
().
ContinueWith
(
task
=
>
{
Firebase
.
DependencyStatus
dependencyStatus
=
task
.
Result
;
if
(
dependencyStatus
==
Firebase
.
DependencyStatus
.
Available
)
{
Firebase
.
FirebaseApp
app
=
Firebase
.
FirebaseApp
.
DefaultInstance
;
isCrashlyticsInitialized
=
true
;
}
else
{
UnityEngine
.
Debug
.
LogError
(
System
.
String
.
Format
(
"Could not resolve all Firebase dependencies: {0}"
,
dependencyStatus
));
// Firebase Unity SDK is not safe to use here.
}
});
}
}
-
Request a banner ad.
using
GoogleMobileAds.Api
;
using
Fabric.Crashlytics
;
...
public
class
GameObjectScript
:
MonoBehaviour
{
public
void
Start
()
{
...
// Initialize Google Mobile Ads SDK.
MobileAds
.
Initialize
((
InitializationStatus
initStatus
)
=
>
{});
// Initialize Firebase.
Firebase
.
FirebaseApp
.
CheckAndFixDependenciesAsync
().
ContinueWith
(
task
=
>
{
Firebase
.
DependencyStatus
dependencyStatus
=
task
.
Result
;
if
(
dependencyStatus
==
Firebase
.
DependencyStatus
.
Available
)
{
// Create and hold a reference to your FirebaseApp,
// where app is a Firebase.FirebaseApp property of your
// application class.
// Crashlytics will use the DefaultInstance, as well;
// this ensures that Crashlytics is initialized.
Firebase
.
FirebaseApp
app
=
Firebase
.
FirebaseApp
.
DefaultInstance
;
isCrashlyticsInitialized
=
true
;
}
else
{
UnityEngine
.
Debug
.
LogError
(
System
.
String
.
Format
(
"Could not resolve all Firebase dependencies: {0}"
,
dependencyStatus
));
// Firebase Unity SDK is not safe to use here.
}
});
// Request Banner View.
this
.
RequestBanner
();
...
}
public
void
RequestBanner
()
{
#if UNITY_ANDROID
string
adUnitId
=
"ca-app-pub-3940256099942544/6300978111"
;
#elif UNITY_IPHONE
string
adUnitId
=
"ca-app-pub-1220882738324941/1255739139"
;
#else
string
adUnitId
=
"unexpected_platform"
;
#endif
// Create a 320x50 banner at the top of the screen.
this
.
bannerView
=
new
BannerView
(
adUnitId
,
AdSize
.
Banner
,
AdPosition
.
Bottom
);
// Called when an ad request has successfully loaded.
this
.
bannerView
.
OnAdLoaded
+=
this
.
HandleOnAdLoaded
;
AdRequest
request
=
new
AdRequest
();
this
.
bannerView
.
LoadAd
(
request
);
}
}
-
Get the ResponseInfo
object OnAdLoaded
and log the response ID to
Crashlytics.
public
void
HandleOnAdLoaded
()
{
ResponseInfo
responseInfo
=
this
.
bannerView
.
GetResponseInfo
();
if
(
responseInfo
!=
null
)
{
String
adResponseId
=
responseInfo
.
GetResponseId
();
// Log to Crashlytics.
if
(
isCrashlyticsInitialized
)
{
Crashlytics
.
SetCustomKey
(
"banner_ad_response_id"
,
adResponseId
);
}
}
}
That's it! You can now see the most recent banner_ad_response_id
in the key
section of crash sessions on your Crashlytics dashboard. Note that some keys may
take up to four hours to become visible on your dashboard.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License
, and code samples are licensed under the Apache 2.0 License
. For details, see the Google Developers Site Policies
. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-09-04 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eFirebase Crashlytics helps you manage app stability by grouping crashes and highlighting their causes.\u003c/p\u003e\n"],["\u003cp\u003eThis guide shows you how to integrate Crashlytics into your Unity project and log ad response IDs.\u003c/p\u003e\n"],["\u003cp\u003eLogging ad response IDs with crash reports allows you to identify and block problematic ads using AdMob's Ad Review Center.\u003c/p\u003e\n"],["\u003cp\u003eIntegration involves adding Firebase to your Unity project, initializing the SDKs, requesting a banner ad, and logging the ad response ID to Crashlytics on ad load.\u003c/p\u003e\n"]]],["Firebase Crashlytics is integrated into a Unity project to log ad response IDs for troubleshooting. This involves initializing both the AdMob and Firebase SDKs, monitored by `isCrashlyticsInitialized`. A banner ad is requested, and upon successful loading (`OnAdLoaded`), the `ResponseInfo` object's response ID is retrieved. This ID is then logged to Crashlytics using `Crashlytics.SetCustomKey` and is accessible in the Crashlytics dashboard's crash session keys.\n"],null,["Select platform: [Android](/admob/android/crashlytics \"View this page for the Android platform docs.\") [iOS](/admob/ios/crashlytics \"View this page for the iOS platform docs.\") [Unity](/admob/unity/crashlytics \"View this page for the Unity platform docs.\")\n\n\u003cbr /\u003e\n\n[Firebase\nCrashlytics](//firebase.google.com/docs/crashlytics/get-started?platform=unity)\nis a lightweight, realtime crash reporter that makes it easy for you to manage\nstability issues in your app. Crashlytics saves you troubleshooting time by\nintelligently grouping crashes and highlighting the circumstances that lead up\nto them.\n\nThis guide describes how to integrate Crashlytics into your Unity project so\nthat you can log ad response IDs. Later, when you troubleshoot crashes in your\napp, you can look up the ad response IDs and use the [Ad Review Center in\nAdMob](//support.google.com/admob/answer/3500252) to find and block the ads.\n\nStep 1: Add Firebase to your Unity app\n\nFollow the [Firebase Unity integration\nguide](//firebase.google.com/docs/crashlytics/get-started?platform=unity) to\nintegrate Firebase Crashlytics into Unity.\n\nStep 2: Log the ad response ID\n\n1. Create a MonoBehaviour script and initialize both AdMob and Firebase SDKs.\n Use the boolean `isCrashlyticsInitialized` to monitor when Crashlytics\n initializes.\n\n using GoogleMobileAds.Api;\n using Fabric.Crashlytics;\n ...\n public class GameObjectScript : MonoBehaviour\n {\n bool isCrashlyticsInitialized = false;\n public void Start()\n {\n ....\n // Initialize Google Mobile Ads SDK.\n MobileAds.Initialize((InitializationStatus initStatus) =\u003e {});\n ....\n // Initialize Firebase\n Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =\u003e {\n Firebase.DependencyStatus dependencyStatus = task.Result;\n if (dependencyStatus == Firebase.DependencyStatus.Available)\n {\n Firebase.FirebaseApp app = Firebase.FirebaseApp.DefaultInstance;\n isCrashlyticsInitialized = true;\n }\n else\n {\n UnityEngine.Debug.LogError(System.String.Format(\n \"Could not resolve all Firebase dependencies: {0}\", dependencyStatus));\n // Firebase Unity SDK is not safe to use here.\n }\n });\n }\n }\n\n2. Request a banner ad.\n\n using GoogleMobileAds.Api;\n using Fabric.Crashlytics;\n ...\n public class GameObjectScript : MonoBehaviour\n {\n public void Start()\n {\n ...\n // Initialize Google Mobile Ads SDK.\n MobileAds.Initialize((InitializationStatus initStatus) =\u003e {});\n\n // Initialize Firebase.\n Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =\u003e {\n Firebase.DependencyStatus dependencyStatus = task.Result;\n if (dependencyStatus == Firebase.DependencyStatus.Available)\n {\n // Create and hold a reference to your FirebaseApp,\n // where app is a Firebase.FirebaseApp property of your\n // application class.\n // Crashlytics will use the DefaultInstance, as well;\n // this ensures that Crashlytics is initialized.\n Firebase.FirebaseApp app = Firebase.FirebaseApp.DefaultInstance;\n isCrashlyticsInitialized = true;\n }\n else\n {\n UnityEngine.Debug.LogError(System.String.Format(\n \"Could not resolve all Firebase dependencies: {0}\",dependencyStatus));\n // Firebase Unity SDK is not safe to use here.\n }\n });\n\n // Request Banner View.\n this.RequestBanner();\n ...\n }\n public void RequestBanner()\n {\n #if UNITY_ANDROID\n string adUnitId = \"ca-app-pub-3940256099942544/6300978111\";\n #elif UNITY_IPHONE\n string adUnitId = \"ca-app-pub-1220882738324941/1255739139\";\n #else\n string adUnitId = \"unexpected_platform\";\n #endif\n // Create a 320x50 banner at the top of the screen.\n this.bannerView = new BannerView(adUnitId, AdSize.Banner, AdPosition.Bottom);\n // Called when an ad request has successfully loaded.\n this.bannerView.OnAdLoaded += this.HandleOnAdLoaded;\n AdRequest request = new AdRequest();\n this.bannerView.LoadAd(request);\n }\n }\n\n3. Get the `ResponseInfo` object `OnAdLoaded` and log the response ID to\n Crashlytics.\n\n public void HandleOnAdLoaded()\n {\n ResponseInfo responseInfo = this.bannerView.GetResponseInfo();\n if (responseInfo != null)\n {\n String adResponseId = responseInfo.GetResponseId();\n // Log to Crashlytics.\n if (isCrashlyticsInitialized)\n {\n Crashlytics.SetCustomKey(\"banner_ad_response_id\", adResponseId);\n }\n }\n }\n\nThat's it! You can now see the most recent `banner_ad_response_id` in the key\nsection of crash sessions on your Crashlytics dashboard. Note that some keys may\ntake up to four hours to become visible on your dashboard."]]
