Google can track the number of calls from these adverts for you. You can set up conversions at account level.
Conversion Calls From Websites – In this event, Google can place a unique forwarding number to display where your phone numbers usually display. Only if your website is visited as a result of an ad click, the new number will display. Google can then track the number of calls that come from the website as a result of Google AdWords.
Conversion Purchases From Website – If you run an e-commerce site, you’ll want to know how effective AdWords is. Use this conversion tracking to see how many purchases you are generating.
Conversion Enquiry Form Submissions – Enquiry forms can be a powerful tool. A fantastic call to action which provides you with lead data in a few taps and clicks. Differentiate the ones coming through Google AdWords by adding this conversion tracking.