Custom ERP vs. Package + Configuration: How to Decide Early

• Packages buy you: maintained modules, ecosystems, upgrade roadmaps, and often faster baseline compliance—if your processes bend.
• Custom buys you: exact differentiation, unique workflows, and tight coupling to your moat—if you can afford product ownership long-term.

1. Differentiation: Is your operational excellence your competitive advantage—or table stakes?
2. Change capacity: Can you standardize processes across sites, or will every plant “need exceptions”?
3. Integration surface: How many specialized systems must be first-class citizens (MES, WMS, POS, CRM)?
4. TCO horizon: 3-year vs. 10-year costs including upgrades, staffing, hosting, and audit support.
5. Velocity needs: Do you need working software in a quarter, or can you fund a multi-year program?

• Your workflows are largely industry-standard with acceptable variation.
• You need vendor roadmap leverage (payroll, tax, localized regs).
• Your internal team is lean—operations-led, not a standing product org.

• Your workflows are the product—constraints define your margins.
• Integrations are continuous and deep; you’ll fight the package’s assumptions daily.
• You already behave like a product company: roadmaps, QA, SRE basics.

Many orgs ship a package core for commodity finance functions and build domain services around operations: planning, traceability, partner portals, pricing engines.Hybrids require integration architecture—not cowboy shortcuts.

Write a page with:

• Primary goal (cost, speed, differentiation, compliance).
• Top 10 workflows ranked by revenue or risk impact.
• Chosen direction + explicit banned fantasies (e.g., “no unlimited customizations in phase 1”).
• Owner for product governance—not only IT.