営業キャパシティ計画
Sales Capacity Planning / セールス・キャパシティ・プランニング
Sales capacity planning estimates the reps, ramp time, productivity, and coverage needed to hit a revenue target.
Sales capacity planning connects revenue targets to headcount, quota, ramp, attrition, territory design, and pipeline supply. It tests whether the sales organization has enough effective selling capacity, not just enough names on an org chart.
Effective sales capacity = reps x quota x attainment rate x ramp factor. Formula | Effective sales capacity = reps x quota x attainment rate x ramp factor. | Use it as the primary operating calculation Bridge | Beginning capacity + hires - attrition - ramp shortfall +/- productivity improvement = effective capacity | Use it to explain changes between reviews Segment | Split by customer, product, channel, and period | Use it to find deterioration hidden by averages
| Lens | Formula / treatment | When to use it |
|---|---|---|
| Formula | Effective sales capacity = reps x quota x attainment rate x ramp factor. | Use it as the primary operating calculation |
| Bridge | Beginning capacity + hires - attrition - ramp shortfall +/- productivity improvement = effective capacity | Use it to explain changes between reviews |
| Segment | Split by customer, product, channel, and period | Use it to find deterioration hidden by averages |
This metric is comparable only when inclusion and exclusion rules stay stable. Include | Rep count, quota, ramp period, attainment, attrition, productive months | They determine usable capacity Exclude | Full quota for unfilled seats, full productivity for ramping reps, unsupported attainment assumptions | They overstate capacity Define explicitly | AE/SDR/CS roles, territory rules, ramp factors | Productivity differs by role
| Item | Treatment | Why it matters |
|---|---|---|
| Include | Rep count, quota, ramp period, attainment, attrition, productive months | They determine usable capacity |
| Exclude | Full quota for unfilled seats, full productivity for ramping reps, unsupported attainment assumptions | They overstate capacity |
| Define explicitly | AE/SDR/CS roles, territory rules, ramp factors | Productivity differs by role |
Breaking the metric into drivers clarifies what action should follow the review. Hiring speed | Determines in-period capacity Ramp period | Delays new-rep productivity Productivity | Moves with win rate, deal size, and cycle length
| Driver | Metric impact |
|---|---|
| Hiring speed | Determines in-period capacity |
| Ramp period | Delays new-rep productivity |
| Productivity | Moves with win rate, deal size, and cycle length |
Use Sales Capacity Planning to decide scaling the sales organization because it highlights headcount, pipeline coverage, and utilization rates and the balance between growth pace and quality delivery. It changes prioritization by forcing teams to state the horizon, boundary conditions, and controllable drivers. It supports recalibration when leading signals move, so decisions remain anchored to current conditions.
- Use Sales Capacity Planning to decide scaling the sales organization because it highlights headcount, pipeline coverage, and utilization rates and the balance between growth pace and quality delivery.
- It changes prioritization by forcing teams to state the horizon, boundary conditions, and controllable drivers.
- It supports recalibration when leading signals move, so decisions remain anchored to current conditions.
- Define the unit and horizon before comparing options across scenarios.
- Separate primary drivers from secondary noise and one time shocks.
- Document data sources, estimation steps, and confidence ranges for review.
- Translate the balance into thresholds that can be monitored over time.
- Revisit assumptions when boundary conditions or policies change.
Do not decide from the number alone; align assumptions, period, segments, and companion metrics. More reps do not guarantee more revenue. Capacity is wasted if pipeline is insufficient. Plans without attrition and ramp are usually overstated.
- More reps do not guarantee more revenue.
- Capacity is wasted if pipeline is insufficient.
- Plans without attrition and ramp are usually overstated.
Companion metrics turn a good-or-bad reading into a discussion of causes and actions. Sales Pipeline Coverage | Opportunity supply | Tests whether capacity can be used Forecast Accuracy | Plan versus actual | Validates productivity assumptions Unit Economics | Acquisition economics | Tests payback on sales investment
| Metric | Role | Why read together |
|---|---|---|
| Sales Pipeline Coverage | Opportunity supply | Tests whether capacity can be used |
| Forecast Accuracy | Plan versus actual | Validates productivity assumptions |
| Unit Economics | Acquisition economics | Tests payback on sales investment |
Ten AEs with $1M annual quota suggest $10M capacity, but 80% attainment and 0.5 ramp for new hires lower effective capacity. If hiring slips by a quarter, in-year revenue capacity drops, so recruiting and pipeline generation must move earlier. After the review, the owner did not treat the metric in isolation. They compared it with companion metrics, checked segment differences, documented assumption changes, and verified data quality before changing the plan. Whether the number improved or deteriorated, the team identified the driver, assigned an owner, and fed the learning into the next budget, operating review, or experiment cycle.
Hiring plan | Headcount | Capacity converts headcount into revenue contribution Quota plan | Individual targets | Capacity is organization-level effective quota Revenue forecast | Expected revenue | Capacity shows the supply-side ceiling
| Metric | Difference | Why read together |
|---|---|---|
| Hiring plan | Headcount | Capacity converts headcount into revenue contribution |
| Quota plan | Individual targets | Capacity is organization-level effective quota |
| Revenue forecast | Expected revenue | Capacity shows the supply-side ceiling |
- Sales Capacity Planning is not a universal rule; results depend on boundary assumptions and data quality.
- A single signal is not sufficient without considering headcount, pipeline coverage, and utilization rates.
- Short term movements can mislead when responses arrive with delays.
Can I use total quota alone?
No. Include attainment, ramp, attrition, and productive months.
How does pipeline relate?
Reps cannot convert revenue without enough qualified pipeline.
How is this different from a hiring plan?
A hiring plan counts people; capacity planning estimates when and how much revenue they can produce.