Build vs buy: when should we custom-build vs adopt vendor platforms for sales ops infrastructure?
Build only for 5–10% of workflows (unique competitive moat). Buy 90–95% (CRM, analytics, compensation). Build-vs-buy decision matrix: if 3+ vendors exist and solve 80%+ of use case, buy; otherwise build.
Operator Approach
Most sales ops teams waste 18–24 months on custom builds they could buy in 3 months. Industry standard: build once you've bought and configured everything else.
Buy: Non-negotiables
- CRM: Salesforce, HubSpot, Pipedrive (switching cost is nuclear)
- Activity data: Outreach, Salesloft, Gong (reps demand these)
- Reporting: Tableau, Looker, Mode Analytics (time-to-dashboard matters)
- Compensation: Spiff, Motivate, ZoomInfo CompTool (legal + complexity = don't DIY)
Build: Only when
- Vendor doesn't exist or all options cover < 60% of requirement
- Competitive moat is real (proprietary algorithm, rep workflow magic)
- ROI payback in < 18 months vs build cost
- Maintenance burden is < 0.5 FTE ongoing
Avoid building:
- Forecasting engines (too many vendor options exist)
- Activity tracking (Outreach/Salesloft do this)
- Dashboarding (Tableau, Looker are cheaper than custom)
- Comp modeling (too many edge cases, not a moat)
Build-vs-buy table:
| Tool Category | Vendor Examples | Build Cost | Buy Cost | Decision |
|---|---|---|---|---|
| CRM Core | Salesforce, HubSpot | $500K+ | $2–10K/mo | BUY |
| Activity | Outreach, Salesloft | $300K | $3–10K/mo | BUY |
| Analytics | Tableau, Looker | $200K | $2–5K/mo | BUY |
| Custom Workflow | N/A (unique) | $150–250K | N/A | BUILD if ROI clear |
| Compensation | Spiff, Motivate | $100K + legal | $500–3K/mo | BUY |
Red flags for custom builds:
- "No vendor does exactly what we need" (means unclear requirements)
- Estimated timeline > 12 months (scope creep incoming)
- Ops team size < 2 FTE (no one maintains it post-launch)
- No clear competitive advantage defined
Mermaid: Build-vs-Buy Decision Framework
Sources: SaaStr Tech Stack Spend Study, Pavilion Benchmarks, OpenView Build-vs-Buy Analysis
TAGS: build-vs-buy,vendor-selection,infrastructure,custom-development,ROI-analysis,competitive-moat,tech-stack-decisions
FAQ
What share of workflows should you build versus buy? Build only for 5 to 10% of workflows that represent a unique competitive moat, and buy 90 to 95% of everything else like CRM, analytics, and compensation. The decision rule is to buy if 3+ vendors exist and solve 80%+ of the use case, otherwise build.
Which categories are non-negotiable buys and what vendors fit? CRM (Salesforce, HubSpot, Pipedrive) is a non-negotiable buy because switching cost is nuclear. Activity data (Outreach, Salesloft, Gong), reporting (Tableau, Looker, Mode Analytics), and compensation (Spiff, Motivate, ZoomInfo CompTool) are also buys because of complexity and legal exposure.
Under what conditions does building actually make sense? Build only when no vendor exists or all options cover under 60% of the requirement, the competitive moat is real, ROI payback lands in under 18 months, and the ongoing maintenance burden is under 0.5 FTE. All four conditions should hold before committing.
How much time do teams typically waste on unnecessary custom builds? Most sales ops teams waste 18 to 24 months on custom builds they could have bought in 3 months. The industry standard is to build only once you've bought and configured everything else.
What are the red flags that a custom build is a mistake? The red flags are saying "no vendor does exactly what we need" (a sign of unclear requirements), an estimated timeline over 12 months (scope creep), an ops team under 2 FTE (no one to maintain it), and no clearly defined competitive advantage.