CRM segmentation rules — what to actually segment

Every CRM lets you segment customers by anything. In practice, most marketers and sales managers segment poorly — too many segments, none of them actionable.

Segments that actually drive different actions:

• Funnel stage. New lead, qualified, in negotiation, customer, churn risk. Each gets different content.
• Recency. Last contact 30 days, 60 days, 90+ days. Reactivation flows.
• Engagement level. Combined score from emails opened, pages visited, meetings attended.
• Customer size / potential. Different content for $1k vs $100k deals.
• Industry / use case. Templates by vertical for sales emails.

Segments that look smart but rarely change behavior:

• Persona (CMO vs VP of Sales) — usually not enough data to act on.
• Geography — unless you have local field reps.
• Job seniority — captured by deal size in most cases.
• Tech stack — only if your product integrates differently with each.

Rule of thumb: if a segment doesn't change what content/email/call gets sent, it's not worth tracking. It's vanity classification.