Buy vs Build: Decision Framework
Buy when the problem is common, you need it fast, and customization isn't critical. Build when the workflow is unique, it's core to your business, or off-the-shelf tools cost more than custom.
Signs to Buy: Standard HR, accounting, CRM needs. Time-to-value is critical. Your team lacks dev resources. The tool has strong integrations with your stack.
Signs to Build: You've outgrown 3+ SaaS tools for the same workflow. The subscription cost exceeds custom development in 18 months. The tool would give you competitive advantage.
Hybrid Approach: Often the best answer is using SaaS for 80% and custom development for the 20% that makes you unique.