# Scene setup

### 1. Configuring Prefabs

Drag and drop the OfferWall prefab from Assets > OfferWall > Prefabs > OfferWall.prefab in the first scene in your Build Settings.

**Drag and Drop OfferWallButton prefab**

Drag and drop the OfferWallButton prefab from Assets > OfferWall > Prefabs > OfferWallButton.prefab under any canvas game object.

### 2. Configuring App Key

Enter your PubScale app ID inside the "App Key" field located on OfferWall prefab.

<figure><img src="https://3371507213-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FaUVG0uxfukyc5xCdlEhZ%2Fuploads%2FjHk3b7lTMWYyUznAAgqs%2Fimage.png?alt=media&#x26;token=c9c547cf-3c4a-472a-bbeb-5e99100b81c9" alt=""><figcaption><p>OfferWall prefab</p></figcaption></figure>

{% hint style="info" %}
The PubScale app ID is an 8-digit identifier generated during the app creation process within the dashboard.
{% endhint %}

### 3. Test the OfferWall

Finally, To test the offer wall, build the application with the OfferWallDemo scene to an actual device. Check if you can see the “Open OfferWall” button.

{% hint style="warning" %}
Please make sure you have the Android build grade version 4 and above.
{% endhint %}


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