Test in Sanbox mode

TEST YOUR ADUNIT BEFORE IT GOES LIVE

Test your Ad Unit before it goes live by selecting the Sandbox option in the bottom-right corner when creating the Ad Unit:

Click on the Preview button near your newly created AdUnit to show a web-preview of the Offerwall.

You can use the offer "MAF Test Offer" to test your integration. The offer will grant a reward to the user everytime you click on that.