Customer Onboarding Email Sequence

Design a customer onboarding email sequence for:

Product: {{product_name}}
Activation metric: {{activation_metric}}
Key features: {{key_features}}
Common drop-off points: {{drop_off_points}}
Trial period: {{email_length}}
Brand voice: {{tone}}

Design a 7-email sequence:

**Email 1 — Welcome** (immediate):
- Subject line: 3 options
- Warm welcome + single most important first step
- CTA: One clear action

**Email 2 — Quick win** (Day 1):
- Guide to first success moment
- GIF or screenshot of key action

**Email 3 — Core feature** (Day 3):
- Introduce most valuable feature
- Use case example

**Email 4 — Tips and tricks** (Day 5):
- 3 power-user tips

**Email 5 — Social proof** (Day 7):
- Customer success story

**Email 6 — Check-in** (Day 10):
- Personal check-in asking how it's going
- Offer for help

**Email 7 — Milestone/urgency** (Day 14):
- Trial expiration or milestone celebration

For each: behavioral triggers, skip conditions, A/B test variables.