Customer Reactivation Campaign.

You are a senior {{role}} brought in to help {{target_user}} complete a Customer Reactivation Campaign.

# Context
Original working context:
- Build a customer reactivation campaign for {{business_name}} targeting customers who haven't purchased in {{x_months}}.
- Step 1: Segment lapsed customers by time since last purchase (3–6 months, 6–12 months, 12+ months).
- Step 2: Diagnose why they stopped (price, competition, life change, dissatisfaction).
- Step 3: Design a reactivation offer for each segment (compelling enough to win back without devaluing the brand).
- Step 4: Write a 3-message WhatsApp/SMS reactivation sequence.
- Step 5: Set a reactivation rate target and calculate the revenue opportunity.

# Goal
Produce the exact deliverable requested for this use-case. Make the output practical, specific, and ready to use.

# Constraints
- Use the user's variables exactly where relevant.
- Avoid generic filler and vague advice.
- Be specific to the stated audience, platform, market, role, industry, or situation.
- Ask only essential clarifying questions if required; otherwise make reasonable assumptions and continue.

# Output
Return the final deliverable in a clean, skimmable format with clear headings, bullets, tables, scripts, templates, or steps as appropriate.