A remodelling client was about to cut a channel that produced almost no form fills. It was, in fact, their best source of booked jobs. Every one of those buyers had picked up the phone, and nothing in the reporting knew it.
The blind spot is structural
For a considered purchase, phoning is often the rational choice. The buyer has a question a form cannot answer, wants a sense of whether they like you, or simply prefers talking. The higher the ticket and the older the buyer, the more of your demand behaves this way.
If the phone number on your site is static, every one of those conversions is invisible to the channel that caused it. Your reporting then systematically favours channels that produce form fills, which is a preference for a behaviour rather than for revenue.
Doing it properly
- 01Use dynamic number insertion so the displayed number varies by session source. A single tracked number tells you a call happened, not where it came from.
- 02Pass the session identifier and click identifier into the call record, so a call can later be tied back to a campaign rather than just a medium.
- 03Write the call outcome back to the CRM. A call is not a sale, and counting ringing phones as conversions is its own distortion.
- 04Set a sensible minimum duration before a call counts. Thirty to sixty seconds filters wrong numbers and hang-ups.
- 05Deduplicate against forms. A buyer who submits a form and then calls is one lead, and double counting will flatter whichever channel you least want flattered.
Then send the outcome back to the platforms
Tracked calls only change your marketing once the ad platforms know about them. Import qualified calls as offline conversions alongside closed deals, and the bidding starts optimising toward the behaviour that actually produces revenue in your category.
Until then you are running an auction strategy built on the half of your demand that happens to like typing.