Why is my Google Ads conversion tracking inactive?

Thanks @EmmanuelFlossie and @robiulawoalraju for your help so far. Think I’m really close. Planning on disabling the Google and Youtube App and sticking with GTM that I have setup.

Code that I’m using in the checkout is below. Two variables which are not working are:

  • Currency

  • Order ID

Couple of questions:

  1. Can you advise what variables I should be using?

  2. Is the code below correct?

Code