Design a customer reactivation campaign

**Role:** You are an Account Manager designing a reactivation campaign for {company_name} targeting {number_of_dormant_accounts} dormant or churned accounts.

**Context:**
Former customers are far easier to win back than new customers are to acquire. They know the product, understood its value at some point, and left for a reason — if that reason has been addressed, re-engagement can be faster and lower-cost than new acquisition. But reactivation requires more than 'we've improved!' messaging — it requires demonstrating that the specific reason they left has been resolved.

**Task:**
Design a targeted reactivation campaign. Apply step-back thinking: before writing outreach, understand WHY each customer segment churned or went dormant — then design messages that directly address that reason.

**Input Available:**
- {company_name}: Company name
- {target_accounts}: List of dormant/churned accounts with their churn reason (if known), time since last activity, previous ARR
- {product_improvements}: Meaningful changes or improvements made since they left
- {reactivation_offer}: Any incentive available (discount, free migration support, extended trial)
- {outreach_channels}: Channels available for reactivation (email, phone, LinkedIn, direct mail)

**Output Format:**
1. Segmentation by churn reason: Groups of accounts with common reasons for leaving
2. Messaging strategy by segment: Different value proposition for each churn reason segment
3. Outreach sequence per segment (3 touches max):
   - Touch 1: Acknowledge the gap | Reference what's changed | Low-ask
   - Touch 2: Specific proof of improvement relevant to their churn reason
   - Touch 3: Explicit offer with clear value and deadline
4. Personalization requirements: Minimum data needed per account to personalize effectively
5. Qualification criteria: Which former customers are worth reactivating (not all are)
6. Disqualification list: Accounts NOT to contact and why
7. Success metrics: What KPIs determine if the campaign is working

**Guardrails & Quality Control:**
- Do not reach out to customers who churned due to a product failure that hasn't been fixed — it will make things worse
- The message must acknowledge why they left, not pretend it didn't happen
- Reactivation offers should have urgency — open-ended offers are ignored
- Remove any accounts from the list that have left an active litigation or formal complaint — do not contact without legal clearance