# AdMob

##   Platform Integration

[iOS integration](https://developers.google.com/admob/ios/mediation/chartboost)

[Android integration](https://developers.google.com/admob/android/mediation/chartboost)

[Unity integration](https://developers.google.com/admob/unity/quick-start)


<div class="alert alert-info" role="alert">
  <b>Note:</b> You should specify a unique ad location for every AdMob ad unit. Failure to do so will result in AdMob calculating blended eCPMs for all ad types, which will not only cause reporting discrepancies between AdMob and Chartboost, but also have the effect of lowering net eCPM and publisher performance as a whole.
</div>



**Supported ad types:**  Banners, video interstitial, static interstitial, rewarded video.

The AdMob adapter currently sets all named locations as  **Default**  if you do not set one in your AdMob console.

iOS 14+: Don’t forget to include both  [Google’s SKAdNetworkID](https://developers.google.com/admob/ios/ios14#skadnetwork)  and  [Chartboost’s SKAdNetworkIDs](/en/mediation/integrate/ios/implement-ios-14-changes/)  in your app’s plist file to ensure full access to ad inventory on the latest versions of iOS.



## How to top-rank Chartboost in AdMob

1.  Log into your  [AdMob dashboard.](https://apps.admob.com/)
2.  Select  **Mediation**  on your left panel.
3.  Select the waterfall you wish to edit by clicking on it.
4.  In the  **Ad source**  section, edit the eCPM field in Chartboost by unchecking the  **eCPM optimization**  option.
5.  Manually enter a high eCPM to rank Chartboost first in the waterfall.



## How to Setup Multiple Chartboost Line Items in AdMob

### 1. Create a Mediation Group

-   Log into your  [AdMob Dashboard](https://apps.admob.com/)  and navigate to  **Mediation -> Mediation Groups**  and click on  **Create Mediation Group**.
![](/assets/images/articles/2023_monetization_mediation_admob_001.png)

-   Select the  **Ad format**  and  **Platform**  you want to target.
![](/assets/images/articles/2023_monetization_mediation_admob_002.png)

### 2. Add Ad Units

-   Enter a name for your mediation scheme and select locations for your group. Then, click on  **Add Ad Units**.
![](/assets/images/articles/2023_monetization_mediation_admob_003.png)

-   Select Ad Units for this group and click on  **Done**  when finished.
![](/assets/images/articles/2023_monetization_mediation_admob_004.png)


### 3. Add Ad Source

-   Scroll down to the Ad Sources section and click on  **Add Ad Network**, then select  **Chartboost**  from Ad Network list.
![](/assets/images/articles/2023_monetization_mediation_admob_005.png)

-   Enter a name for this line item, switch off  **Optimize**, set fixed  **eCPM**, and then click on  **Continue**.
![](/assets/images/articles/2023_monetization_mediation_admob_006.png)

-   Fill in the Chartboost  **App ID**  and  **App Signature**. See how to find Chartboost  **App ID**  and  **App Signature**  [here](/en/faq/most-popular-faqs/).
![](/assets/images/articles/2023_monetization_mediation_admob_007.png)

-   Enter a value for  **Ad Location**  (in the Chartboost Dashboard this is also referred to as a  **‘Named Location’**). Click on  **DONE**  when finished.**Note**: Chartboost  [appcountry API](/en/advertising/reference/analytics-methods/)  can provide data breakdown by adLocation (Named Locations) values that cross a small threshold of activity (generally around 10 different ad creatives displayed, for example), otherwise they will not be broken out and instead aggregated under the other grouping.

-   **Note**:  **Named Locations**  can  **NOT**  be longer than  **50 characters**.
![](/assets/images/articles/2023_monetization_mediation_admob_008.png)

-   The  **Named Location**  will automatically appear in your Chartboost Dashboard after this  **Named Location**  has been used in this Ad Unit for a few ad requests.

-   Login to your  [Chartboost platform](https://platform.chartboost.com/), and you will find the  **Named Location**  under your publishing campaign. If an Ad Unit ID is for rewarded placement, it will only appear in rewarded video campaigns. If it is for interstitial placement, it will only appear under interstitial campaigns.


### 4. Add more Chartboost line items

-   Repeat  **Step 3**  of adding Ad source to add more Chartboost line items to the mediation group with different fixed  **eCPM** and **Named Locations**.
![](/assets/images/articles/2023_monetization_mediation_admob_009.png)

-   When finished adding the Ad sources, click on  **SAVE**.
![](/assets/images/articles/2023_monetization_mediation_admob_010.png)



**And that’s it!**

The Ad Units in this meditation group will now be able to request ads with multiple line items from Chartboost (Highest eCPM first).