---
title: Manually configure project
---

<Info>
We have created a script that performs all the steps below automatically for you. Learn how to invoke automatic configuration on the [Project Setup page](iOS).
</Info>

## AdAttributionKit and SKAdNetwork Support
Read more on [Apple Ad Attribution page](general/Apple-Ad-Attribution).

## App Transport Security
[App Transport Security (ATS)](https://developer.apple.com/documentation/bundleresources/information_property_list/nsapptransportsecurity) is a privacy feature introduced in iOS 9. It's enabled by default for new apps and enforces secure connections.   
To ensure your ads are not impacted by ATS, add the `NSAllowsArbitraryLoads` exception to disable ATS restrictions:

| Key | Type | Value |
|---|:---:|---|
| Information Property List | Dictionary | |
| ▼ App Transport Security Settings | Dictionary | |
| - Allow Arbitrary Loads | Boolean | YES |

Or, open plist as source code:
```xml
<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>
```

<Info>
Make sure that your info.plist does not contain any other exceptions besides `NSAllowsArbitraryLoads`, as this might create a conflict.
</Info>

## Link the project
To link your project with the mediation settings, you need to have a registered account and an application in the CAS system.

<Info>
If you haven't created an CAS account and registered the app yet, now's a great time to do so.  
If you just want to experiment or test the SDK, you can skip link your project.
</Info>

1. Sign In https://cleveradssolutions.com.
2. Select the Applications section on the right panel.
3. Click the plus(**+**) button and follow the instructions on the form. It may take up to 30 minutes to register the app in the CAS system.
4. After the registration completed, click the **Action** button in the row of your application

![dashboardcasapps](https://user-images.githubusercontent.com/22005013/225905839-6b494a90-a400-49d9-a070-ae930e4ff225.jpg)  


CAS uses a mediation configuration caching system to handle unexpected situations.
1. Click **Download CAS settings** button.
2. A `cas_settings[settings_id].json` file will be downloaded.  
3. Move your config file into the root of your Xcode project.
4. If prompted, select to add the config file to all targets.

<Accordion title="What do you need to know about this config file?">

- The CAS config file contains unique, but non-secret identifiers for your project.  
- The configuration file is updated frequently, so we recommend that you regularly download the latest file for each new release.
- Please do not change the name of the file. Make sure the config file name is not appended with additional characters, like `(2)`.
- The `[settings_id]` is the internal unique identifier of the resource.  
- If you have multiple CAS manager IDs in your project, you must associate each CAS ID with a registered app in the CAS console so that each app can have its own `cas_settings[settings_id].json` file.
</Accordion>

### Add Google Ads App ID 
CAS assigns a new AdMob App ID for your application to the correct operation of all features.    
<Error>  
You cannot use your own identifier and must replace it with a new one generated by CAS system.  
</Error>

You can find your Admob App ID in the CAS UI:   
1. Click the **Show AdMob App ID** button.
2. Copy the id from the form.
3. Add a `GADApplicationIdentifier` key to your app's `Info.plist` file.  
5. Insert AdMob app ID to `<string>`, as shown below.
```xml
<!-- Sample AdMob App ID: ca-app-pub-3940256099942544~1458002511 -->
<key>GADApplicationIdentifier</key>
<string>ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy</string>
```
Or, edit it in the property list editor:

| Key                        |    Type    | Value                                  |
| -------------------------- | :--------: | -------------------------------------- |
| Information Property List  | Dictionary |                                        |
| ▼ GADApplicationIdentifier |   String   | ca-app-pub-3940256099942544~1458002511 |

In a real app, replace the sample app ID with your **actual AdMob app ID**. You can use the sample ID if you're just experimenting with the SDK in a Hello World app.

Also, note that failure to add the `<meta-data>` tag exactly as shown results in a crash with the message: `Missing application ID`

## Delay app measurement

By default, the Google Mobile Ads SDK initializes app measurement and begins sending user-level event data to Google immediately when the app starts. This initialization behavior ensures you can enable AdMob user metrics without making additional code changes.

However, if your app requires user consent before these events can be sent, you can delay app measurement until CAS explicitly initialize the Google Mobile Ads SDK.

To delay app measurement, add the `GADDelayAppMeasurementInit` key with a boolean value of `YES` to your app’s `Info.plist`. You can make this change programmatically:

```xml
<key>GADDelayAppMeasurementInit</key>
<true/>
```
Or, edit it in the property list editor:

| Key | Type | Value |
|---|:---:|---|
| Information Property List | Dictionary | |
| ▼ GADDelayAppMeasurementInit | Boolean | YES |