Generic defaults to start quickly—must be calibrated with local evidence. Record: range, point estimate, confidence, and the test that upgrades confidence.
Confidence rating standard
- High (H): supported by in-country primary data (quotes/contracts/invoices) or authoritative local sources
- Medium (M): supported by credible proxies (adjacent markets, comparable segments, triangulated research)
- Low (L): assumption-heavy; used only for sizing; must be validated fast
Assumptions list (copy into your model’s “inputs” section)
A1. Qualified pipeline coverage
- Default range: 2.5×–4.0×
- Point estimate: ____
- Confidence: ____
- Validate fast: CRM stage discipline + 4-week trend
A2. Win rate (qualified → closed), enterprise
- Default range: 15%–35%
- Point estimate: ____
- Confidence: ____
- Validate fast: stage conversion by segment/use case
A3. Sales cycle (first deal), enterprise
- Default range: 60–180 days
- Point estimate: ____
- Confidence: ____
- Validate fast: deal diary (time-in-stage + blockers)
A4. Discount to list
- Default range: 10%–25%
- Point estimate: ____
- Confidence: ____
- Validate fast: live quote tests + deal desk logs
A5. Channel margin (if used)
- Default range: 15%–35%
- Point estimate: ____
- Confidence: ____
- Validate fast: partner term sheets + margin walk
A6. Pilot-to-paid conversion
- Default range: 40%–70%
- Point estimate: ____
- Confidence: ____
- Validate fast: pilots with written success criteria
A7. Gross retention (annual)
- Default range: 80%–95%
- Point estimate: ____
- Confidence: ____
- Validate fast: cohort adoption + renewal intent signals
A8. Net revenue retention (annual)
- Default range: 95%–125%
- Point estimate: ____
- Confidence: ____
- Validate fast: attach plan + early expansion indicators
B1. Onboarding time-to-value
- Default range: 1–6 weeks (light) / 6–16 weeks (complex)
- Point estimate: ____
- Confidence: ____
- Validate fast: pilot time tracking + exceptions log
B2. Support load per customer (early)
- Default range: 1.2–2.5 tickets/month
- Point estimate: ____
- Confidence: ____
- Validate fast: ticketing baseline + post-fix trend
B3. Implementation capacity
- Default range: ____ onboardings per FTE per month
- Point estimate: ____
- Confidence: ____
- Validate fast: runbook time studies + utilization tracking
C1. DSO (B2B)
- Default range: 30–75 days
- Point estimate: ____
- Confidence: ____
- Validate fast: term sheets + first 10 invoices aging
C2. Invoice dispute rate (early)
- Default range: 2%–8%
- Point estimate: ____
- Confidence: ____
- Validate fast: root-cause of rejects; target <2%
C3. DPO
- Default range: 30–60 days
- Point estimate: ____
- Confidence: ____
- Validate fast: vendor contracts + payment runs
C4. Inventory days (if physical)
- Default range: 30–120 days
- Point estimate: ____
- Confidence: ____
- Validate fast: lead times + customs variance
D1. FX sensitivity
- Default range: ____% of cost/revenue in local currency
- Point estimate: ____
- Confidence: ____
- Validate fast: exposure map + hedging feasibility check
How to use this library in practice
- Pick the unit: define the unit economics unit (account/order/site) before setting assumptions.
- Lock definitions: define “discount,” “net price,” “qualified pipeline,” and “time-to-value” once.
- Promote assumptions to tests: each low-confidence Tier 1 assumption needs a 30–90 day validation plan + owner.
- High (H): supported by in-country primary data (quotes/contracts/invoices) or authoritative local sources