How to avoid ad violation policies

There are two ways

1. Setup as Demo Ads

2. Setup as Test Device 

When you configure your Android or iOS device as a test device, the AdMob Network sends production ads in test mode to your device using the ad unit IDs you've created in your AdMob account. 

Ads served by the AdMob Network will display a label that lets you know you’re in test mode. Look for the test mode label before clicking on an ad. 

Below are the steps to enable Test Mode 

Sign in to your AdMob account at https://apps.admob.com.

Click Settings in the sidebar.

Click the Test devices tab.

Click Add test device.  

Select the platform of your device.

Enter a device name. Consider using a name that will help you quickly identify your devices in your AdMob account.

Note: The device name will be visible to anyone who has access to your AdMob account.

Enter your Advertising ID/IDFA. Learn how to find your advertising ID/IDFA. 

Select a gesture to use to activate ad inspector:

None. If you select none, you can still activate ad inspector with an API call. Learn more. 

Shake 

Flick twice  

Click Done. 

references:

https://support.google.com/admob/answer/9691433

https://support.google.com/admob/answer/9388275?hl=en#:~:text=Test%20devices,-Test%20devices%20allow&text=You%20can%20configure%20your%20device,created%20in%20your%20AdMob%20account.