Why Build a Custom CRM?
I've helped companies migrate away from Salesforce, HubSpot, and Zoho - not because those tools are bad, but because they didn't fit specific workflows. A custom CRM is worth it when your process is unique.
Core CRM Features
1. Contact Management
- Store customer details
- Track communication history
- Tag and segment contacts
- Import/export functionality
2. Pipeline/Deal Tracking
- Visual kanban board for deals
- Stage progression tracking
- Win/loss analytics
- Revenue forecasting
3. Activity Timeline
- Log calls, emails, meetings
- Automated activity tracking
- Task reminders and follow-ups
- Team collaboration notes
Tech Stack for a Custom CRM
| Component | Recommended |
| Frontend | React + Tailwind + shadcn/ui |
| Backend | Laravel or Node.js |
| Database | PostgreSQL |
| Search | Meilisearch |
| File storage | S3/Supabase Storage |
| SendGrid or Resend |
Database Design Tips
- Use UUID primary keys for distributed systems
- Store all timestamps in UTC
- Implement soft deletes (never lose customer data)
- Use JSONB columns for custom fields
- Index frequently searched columns
Lessons from Production CRMs
1. Custom fields are essential - every business has unique data needs
2. Search must be fast - users search constantly
3. Mobile access matters - sales teams work on the go
4. Integration is key - connect with email, calendar, phone
5. Audit trails - always know who changed what and when
A CRM should adapt to your business, not the other way around.
