What is - Google Conversion ID
The Google conversion ID is the ID within your Google Adwords conversion tracking code. If you do not have an AdWords account then you do not need to know this yet.
To get your Google conversion ID log into your Adwords account and go to conversion tracking. From here you will need to select the purchase/sale conversion code and view the code. You will see a number within this code called your Conversion ID. This is your Google conversion ID.