Open Measurement with the Google Mobile Ads SDK
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Open Measurement is an IAB standard that allows publishers to use third-party
viewability providers to verify impressions and click measurements.
Google Mobile Ads SDK
supports Open Measurement starting with version
7.43.0
. This and later versions of Google Mobile Ads SDK
integrates with the
Open Measurement (OM) SDK
to enable third-party viewability measurement.
Google Mobile Ads SDK supports OM SDK version 1.4.
Prerequisites
* Google Mobile Ads SDK
7.43.0
or higher.
Implement Open Measurement
Google Mobile Ads SDK automatically implements Open Measurement using
"Google" as the Open Measurement partner name for all ads served using the
Google Mobile Ads SDK.
To use a third-party viewability provider, configure it in the
Ad Manager UI, and configure your line items to use that viewability
provider. For more details, see Configure a mobile app viewability provider.
Ensure that transparent overlays are non-obstructing
For an ad to not be considered blocked, the view that is obscuring the ad must
have one of these settings:
It doesn't matter if the obscuring view has a transparent background, the
view's alpha and visibility values are what determine whether the view is
blocking your ad.
If the Open Measurement SDK detects an obstruction over the ad, it could impact
whether a viewability provider considers the impression viewable. To fix this,
set your view's alpha to 0 or
set isHidden to TRUE.
Troubleshooting
Be aware of the following when implementing Open Measurement:
You must check with the mediation partner to learn if they support Open
Measurement for ads they render.
Ads that are obscured by overlaying views might not register viewability
measurements. For more information, refer to Ensure that transparent overlays
are non-obstructing.
On test devices, including the
iOS simulator, the Test Ad label is detected as non-obstructing
to the ad view.
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Last updated 2025-08-29 UTC.
[null,null,["Last updated 2025-08-29 UTC."],[[["\u003cp\u003eOpen Measurement, an IAB standard, lets publishers use third-party verification for impressions and clicks, supported in Google Mobile Ads SDK for iOS 7.43.0 and later.\u003c/p\u003e\n"],["\u003cp\u003eIt integrates with the Open Measurement SDK (OM SDK), enabling third-party viewability measurements through an API for verification providers.\u003c/p\u003e\n"],["\u003cp\u003eIt automatically supports standard ad formats like Banner, Interstitial, Rewarded, Native, and Native Custom ad formats using video.\u003c/p\u003e\n"],["\u003cp\u003eEnsure transparent overlays on ads have \u003ccode\u003ealpha = 0\u003c/code\u003e or \u003ccode\u003eisHidden = TRUE\u003c/code\u003e to prevent obstruction and ensure accurate viewability measurements.\u003c/p\u003e\n"],["\u003cp\u003eBe aware that mediation partner support for Open Measurement varies, obscured ads may impact viewability, and test devices have specific behaviors.\u003c/p\u003e\n"]]],[],null,["Open Measurement is an IAB standard that allows publishers to use third-party\nviewability providers to verify impressions and click measurements.\nGoogle Mobile Ads SDK\n\nsupports Open Measurement starting with version\n7.43.0\n. This and later versions of Google Mobile Ads SDK\n\nintegrates with the\n[Open Measurement (OM) SDK](https://iabtechlab.com/standards/open-measurement-sdk/)\nto enable third-party viewability measurement.\n\nGoogle Mobile Ads SDK supports OM SDK version 1.4.\n\nPrerequisites \\* Google Mobile Ads SDK 7.43.0 or higher.\n\n- Complete [Get started](/ad-manager/mobile-ads-sdk/ios/quick-start).\n\n\u003c!-- --\u003e\n\n- A configured [viewability\n provider](//support.google.com/admanager/answer/9025968#configure-a-viewability-provider) assigned to your line item.\n\nImplement Open Measurement\n\nGoogle Mobile Ads SDK automatically implements Open Measurement using\n**\"Google\"** as the Open Measurement partner name for all ads served using the\nGoogle Mobile Ads SDK.\n\nTo use a third-party viewability provider, configure it in the\nAd Manager UI, and configure your line items to use that viewability\nprovider. For more details, see [Configure a mobile app viewability provider](//support.google.com/admanager/answer/9025968).\n| **Note:** Custom native ad formats that don't render a video asset require a custom Open Measurement integration. For more information, see [Display-type Custom Native Ad Formats and Open Measurement](/ad-manager/mobile-ads-sdk/ios/custom-native-omid).\n\nEnsure that transparent overlays are non-obstructing\n\nFor an ad to not be considered blocked, the view that is obscuring the ad must\nhave one of these settings:\n\n- `alpha = 0`, or,\n\n\u003c!-- --\u003e\n\n- `isHidden = TRUE`\n\nIt doesn't matter if the obscuring view has a transparent background, the\nview's alpha and visibility values are what determine whether the view is\nblocking your ad.\n\nIf the Open Measurement SDK detects an obstruction over the ad, it could impact\nwhether a viewability provider considers the impression viewable. To fix this,\nset your view's alpha to `0` or\n\nset `isHidden` to `TRUE`.\n\n\nTroubleshooting\n\nBe aware of the following when implementing Open Measurement:\n\n- You must check with the mediation partner to learn if they support Open\n Measurement for ads they render.\n\n- Ads that are obscured by overlaying views might not register viewability\n measurements. For more information, refer to [Ensure that transparent overlays\n are non-obstructing](#obstructing).\n\n- On [test devices](/ad-manager/mobile-ads-sdk/ios/test-ads#enable_test_devices), including the\n iOS simulator, the **Test Ad** label is detected as non-obstructing\n to the ad view."]]
