Marketing contribution to forecast is the portion of a period's revenue forecast that depends on marketing. It answers two questions in the same number: how much of the marketing-sourced pipeline sitting in the CRM will close this period, and how much pipeline marketing has to create and close inside the period to hold the plan.
Coverage is an input, not the answer
Most teams stop at a coverage ratio. ORM benchmark data puts the standard at 3x to 5x, with most customers landing near 3.5x, and coverage inside that band still tells you almost nothing about whether the number lands. A company can hold 4x coverage and miss badly if the pipeline is aged, concentrated in a few large deals, or sourced from channels that convert poorly.
The composition matters more than the ratio. Pipeline coverage built from marketing-sourced opportunities converts at a different rate than coverage built from outbound, so a single blended ratio hides the mix that actually determines the outcome.
Decompose the period into revenue sources
ORM models a period's revenue as three distinct paths, and marketing carries different weight in each.
| Source | What it is | Marketing's role |
|---|---|---|
| Carry-over | Deals already in pipeline on day one with close dates in the period | Conversion support and stalled-deal reactivation |
| In-period created | Opportunities created and closed inside the same period | Creation commitment, the core forecast contribution |
| Pull-forward | Deals accelerated from future periods, usually with discounting | Limited, and expensive when overused |
Build the commitment from four inputs
Start with historical creation velocity by channel, apply the marketing-sourced win rate by segment, apply the median time from opportunity creation to close, then discount for the share of created pipeline that cannot mature fast enough to close inside the period. Deals created in the final six weeks of a quarter with a 90 day median cycle contribute to the next period, not this one.
That last step is what separates a marketing forecast from a lead target. Volume created in week eleven looks identical to volume created in week two on a dashboard and carries a fraction of the in-period value.
Present it inside the forecast, not beside it
Marketing contribution belongs in the same sales forecasting review as rep commit, on the same opportunity set. Reporting it separately in a marketing dashboard guarantees the two views drift, and the gap surfaces late in the quarter when nothing can be done about it. Teams that run one reconciled view see forecast accuracy improve because the creation assumption becomes visible in week one instead of week ten. The coverage rule alone will not get you there, as covered in why the 3x pipeline coverage rule is wrong.
Frequently Asked Questions
How is marketing contribution to forecast different from marketing-sourced pipeline?
Sourced pipeline is a backward-looking count of opportunities marketing originated. Contribution to forecast is a forward-looking commitment covering two things at once: how much of the existing marketing-sourced pipeline will close this period, and how much new pipeline marketing will create and close inside the same period. The second half is what makes it a forecast rather than a report.
Why should marketing forecast in-period pipeline creation at all?
Because a large share of any quarter's revenue comes from opportunities that do not exist on day one. If the forecast only models pipeline already in the CRM, the creation motion that has to fill the gap is invisible until it fails. Naming a creation target early gives both teams a full quarter to react.
What conversion rate should marketing use for the forecast?
Use the win rate for marketing-sourced opportunities specifically, segmented by deal size band, rather than the blended company win rate. Marketing-sourced deals convert differently from outbound-sourced deals, and blending the two produces a forecast that is wrong in both directions at once.
Who presents this number in the forecast call?
Marketing presents the creation commitment and sales presents the conversion of existing pipeline, with RevOps reconciling both against the same opportunity set. When only sales presents, marketing contribution becomes an assumption nobody owns and the gap surfaces in week ten of the quarter.
Put these metrics to work
ORM builds custom revenue forecast models that turn concepts like marketing contribution to forecast into prescriptive action for your team.
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