Add Google Conversion Tracking Code to Header Button

Hi all,

I have set up a conversion action and trigger on Google Tag Manager to track outbound clicks made via the 'Book a Stay' button on our header.

The video I am following says that the final step is to add a piece of code to the button <a> tag to complete this, but I'm unsure how as I can't directly edit the button coding. I am assuming I need to add something in the custom code injector, but some advice on exactly what I need to do to achieve this would be great. 

Here's the code (highlighted) that needs to be added to the button: 

<a onclick="return gtag_report_conversion('http://example.com/your-link');"
href="http://example.com/your-link">Download now!</a>

Following this guide: https://support.google.com/google-ads/answer/6331304?hl=en#zippy=%2Cset-up-conversion-tracking-using-the-google-tag

Thanks in advance.

Hi,

Can you share your site url?