If the Google Client ID is not showing in your forms please check out the common causes here.
#1 HubSpot Google Analytics Integration Issues
If you are using the HubSpot Integration to output the GA tracking code it will not work well if you have GDPR settings enabled. More info here.
We recommend manually adding your GA tracking code to the site header or using Google Tag manager to deploy the GA tracking code.
#2 JQuery is not installed
#4 Multiple Google Tracking Scripts are running on the same page
If you are running more than one GA tracking script you will need to specify the correct ID. Please use this script instead.