At Nokia I was the sole demand generation manager for the business groups I supported, and the pipeline I reported on each year passed a hundred million dollars. The label on that figure matters: it was MIO, marketing-influenced opportunities. The MGO line, the opportunities marketing could claim to have generated outright, ran far below it. On a sourced-only scorecard, most of what the work moved would have been invisible.
The gap between those two numbers can look like a problem. I came to read it as the most accurate thing in the report.
Two lines, and the gap between them
Nokia's marketing reporting drew a line many B2B teams still blur. MGO counted opportunities marketing generated: the deal exists because a campaign found it. MIO counted opportunities marketing influenced: the deal was touched, advanced, or supported by marketing somewhere along its path. In enterprise deals, which run long, involve buying committees, and move through account plans and field relationships, the generated bucket stays structurally small. The first meaningful touch often lands years before an opportunity opens, at an event or through a peer, and nothing tracks it.
Industry benchmarks bear this out. In enterprise and account-based motions, sourced-style attribution captures an estimated five to twenty percent of marketing's real contribution. The metric was designed for a transactional funnel, and complex deals refuse to follow one.
Why generated-only scorecards go wrong
Ask anyone who has carried a sourced-pipeline goal and you will hear the same two failure modes. The metric pulls teams toward lead volume, since more leads mean more chances to claim a first touch, and volume is a poor proxy for revenue in a long-cycle business. And it turns attribution into a credit negotiation between sales and marketing, where every closed deal invites an argument over whose number it was. Both dynamics corrode the alignment the pipeline runs on.
What I actually reported
My reporting kept both lines visible. MIO ran beside MGO in the same view, so leadership saw the full footprint of marketing's contribution next to the narrower generated number, and the influenced figure never had to masquerade as sourced. I also broke pipeline out by business group and segment, which turned the report from a credit claim into a coverage map: where marketing was present in the pipeline we aimed at, and where it was thin.
That structure asked nothing from sales. No one had to concede credit for an influenced opportunity to count. A scorecard both teams can read without flinching gets used. One that reassigns credit gets contested.
What I would add today
Reporting influence beside generation was the right floor. Building the scorecard now, I would extend it three ways:
- Lift against a control. Compare win rate, deal size, and velocity for accounts marketing engaged against comparable accounts it left alone. Lift sidesteps the credit argument entirely, because it never asks who owned the deal.
- Win rate and velocity inside the ICP. Watch whether engaged accounts in the ideal customer profile, the accounts the strategy deliberately targets, close faster and at higher rates than the rest. Those are the signals that positioning and enablement are earning their keep.
- Definitions agreed before the quarter. Settle what counts as influence, and against which accounts, while no specific deal is on the line. Attribution questions harden into standoffs the moment a commission is attached to the answer.
A pipeline you cannot fully source is usually evidence of a complex motion doing its job.
The market is catching up to this
Forrester tracked marketing-sourced pipeline from roughly seventy percent of B2B teams using it in 2015 toward a projected fourteen percent by 2025. The dark funnel explains much of the decline. Buyers research in Slack groups, podcasts, peer conversations, and increasingly inside AI assistants, then surface late with opinions already formed. By the time a trackable touch fires, the deal is half made. Teams are responding with influenced-pipeline reporting, self-reported attribution, and incrementality testing, the same direction the MGO and MIO split pointed all along.
The number that holds up
I could never have claimed marketing generated most of a hundred million dollars in annual pipeline, and I never needed to. Influence reported under its own label, broken out by segment, beside a smaller generated number, gave leadership a truthful map of marketing's contribution to a complex motion. In the enterprise, that map outlasts any single sourced claim.
I write about product marketing, demand generation, and AI in the funnel, drawing on twelve years across enterprise B2B and consumer brands. Working the same problems? I'll trade notes.