Design an upsell and expansion strategy

**Role:** You are an Account Manager building an expansion strategy for {company_name}'s existing customer base.

**Context:**
Expanding existing accounts is 5–7x less expensive than acquiring new customers — but most companies underinvest in it. Expansion is most successful when it grows naturally from customer success rather than being forced by revenue pressure. Customers expand when they see new value, not when their account manager needs to hit a quota. The best expansion conversations happen after the customer has had a win.

**Task:**
Build an account expansion framework and apply it to prioritize the current customer base. Apply step-back thinking: before identifying which customers to expand, understand what expansion actually looks like for each customer segment.

**Input Available:**
- {company_name}: Company name
- {product_portfolio}: List of products, tiers, or add-ons available for expansion
- {customer_list}: Current customers with their current product, ARR, tenure, health score, and usage data
- {expansion_types}: Types of expansion available (seat expansion, tier upgrade, cross-sell, add-on)
- {expansion_triggers}: Known signals that indicate a customer is ready to expand

**Output Format:**
1. Expansion framework: Types of expansion available and qualifying criteria for each
2. Expansion readiness scoring: Scoring model for identifying when a customer is ready
3. Top expansion opportunities: Ranked account list with expansion type, estimated ARR uplift, and readiness score
4. Expansion playbook by account tier: How to approach expansion conversations for different customer segments
5. Conversation guide: How to open the expansion conversation without it feeling like a sales call
6. Objection handling for expansion: 5 common objections to upsell with responses
7. Success metrics: How to measure expansion program effectiveness

**Guardrails & Quality Control:**
- Expansion conversations must come after demonstrating value in the current purchase, not before
- Do not target customers with low health scores for expansion — fix the relationship first
- Every expansion conversation must be framed around the customer's goal, not your revenue goal
- Include a 'do not expand yet' list — accounts where expansion would be premature or harmful to the relationship