Brands are putting AI agents in front of buyers faster than they are building ways to count what those agents sell. Invoca’s 2026 Broken Funnel Report, released on Nov. 10, surveyed 451 US B2C marketing leaders and found that 74% of those running AI agents cannot fully track an agent-handled lead from first click to conversion.
What the survey found
Seven in ten brands have AI agents live or in pilot to answer buyer questions, according to the Invoca release. Only 27% of marketers running agents use revenue, bookings or conversion rate as the primary KPI; most rely on satisfaction, qualified leads or conversation volume. Just 26% can tie agent conversations to the campaign or ad that drove them, and 19% reliably send conversation outcomes back to their ad platforms. Another 56% lose track of leads once they reach a dealer, franchise or local branch. Research firm Gather ran the survey between Sept. 14 and Oct. 5, 2026, across automotive, healthcare, home services, financial services and telecom.
Why it matters for marketing leaders
The 19% figure is the one that touches media budgets. Bidding systems at Google and Meta optimize toward the conversions they are told about. When a lead closes inside an agent conversation and the outcome never reaches the ad platform, the algorithm keeps buying more of whatever produced the click. Invoca sells software that closes this loop, so its framing carries a commercial interest. The traffic itself is already measurable on the site side, as Microsoft Clarity’s count of 5.2 million agent sessions showed.
The insight
Treat an AI agent as a conversion source in the same sense as a form or a call line. That means a conversion action in each ad platform, a campaign ID carried into the conversation, and one written definition of what counts as a sale, the discipline argued in Keep One Written Copy of Your Conversion Definition. Without those three, the agent’s results stay outside the numbers that decide next quarter’s spend.
Source: Invoca via PR Newswire
