How Performance Agencies Track Calls Back to the Campaign That Generated Them

For performance agencies, clicks are only part of the story.

A campaign might generate 1,000 clicks, but if 100 people call, the real question is: Which campaigns, keywords, ads, or traffic sources generated those calls?

A simple call-tracking workflow can connect the dots:

Ad → Click → Landing Page → Phone Call → Qualified Lead → Revenue

For example, an agency running Google Ads for a home services client could see that:

• Campaign A generated 500 clicks and 35 calls
• Campaign B generated 300 clicks and 60 calls
• Campaign B generated fewer clicks but significantly more qualified calls

Without call-level attribution, Campaign A might look like the winner.

With call tracking, the agency can optimize based on actual leads and revenue, not just clicks.

For agencies managing multiple clients, this can also make reporting much more meaningful—especially when phone calls are a major part of the conversion journey.

How are other performance agencies currently tracking and attributing phone calls to their campaigns?