Finding your Google Ads Tag ID is easy following the steps below.
First, go to https://ads.google.com/ and if you haven’t already, sign up for an account. Once you are in the Campaigns view all you have to do is go to Tools and settings > Google Tag from the top menu:
From that screen you can copy the Tag ID (make sure you include the AW- prefix):
All that’s left now is to paste that in the Google Ads Tag ID field in the Conversion Pixels settings of the WPCode plugin: