Quantify slippage before it blindsides you. Know exactly how many deals you need to add this quarter to compensate for historical slip rates.
Deal slippage is the silent killer of quarterly attainment. Every deal that slips from Q3 to Q4 doesn't just delay revenue — it forces you to restock pipeline mid-quarter, disrupts account prioritization, and signals qualification or process problems that compound over time. To calculate your slip rate: count deals that were committed to close in a period but did not, then divide by total committed deals. A 25% slip rate means one in four of your committed deals is going to push — and that has to be factored into how much pipeline you need at quarter start.
Root causes vary by stage: deals that slip from Proposal stage usually have a mutual action plan problem. Deals that slip from Negotiation usually have a champion problem — your champion doesn't have the authority they claimed. Deals that slip from Discovery are usually misqualified from the start. The fix is not urgency tactics; pushing prospects with artificial end-of-quarter pressure is a short-term patch that damages relationships. The real fix is better qualification earlier (MEDDIC), real mutual action plans from the first meeting, and weekly deal review that catches stall signals before they become slips. Best-in-class teams maintain below 15% quarterly slip. Average B2B teams run 20–35%. Above 40% is a serious process problem.
Deal slippage occurs when a deal that was expected to close in a given period (quarter, month) doesn't close and is pushed to a future period. It's measured as a percentage of committed deals that did not close as forecasted. High slippage is usually a symptom of weak qualification, vague close dates, or deals being committed prematurely.
Below 15% is considered best-in-class. 20–35% is the industry average for B2B SaaS. Above 40% quarterly slippage indicates a systematic problem with qualification, mutual action plans, or the commitment process. If more than one in three committed deals is slipping, it's a leadership priority.
The three most effective interventions: (1) Mutual Action Plans — a shared document with committed next steps, dates, and owners on both sides. (2) Economic Buyer access — ensure every deal has a confirmed conversation with the person who controls budget before it enters commit. (3) Weekly deal reviews — catch stall signals (no email in 10 days, champion went quiet) before they become quarter-end surprises.
Not immediately, but they should be requalified. A deal that slips once with a clear reason (budget cycle, internal priority shift) is still worth pursuing. A deal that has slipped two or more quarters without a clear new close date should be either moved to a 'nurture' stage or removed from active pipeline — it's consuming forecasting bandwidth without contributing.
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