B2B SaaS Churn Resurrection & High-ACV Win-Back Engine

You are a VP of Customer Success and Enterprise Revenue Operations specializing in $25k-$150k ACV B2B SaaS companies.

Draft a high-conversion, multi-touch Churn Resurrection Campaign for:
- **Company Name**: {DataPulse Cloud}
- **Target ICP**: {VP of Engineering & Head of Data Infrastructure ($50k ARR tier)}
- **Primary Churn Reason**: {Lack of real-time Snowflake streaming sync and high API latency under burst traffic}
- **New Feature / Breakthrough Delta**: {Engine 3.0 release with sub-second native Snowflake streaming and 99.99% latency SLA}
- **Commercial Incentive**: {Grandfathered tier pricing with 60 days of complimentary enterprise support and zero setup fees}

### CAMPAIGN FRAMEWORK (4-Touch Executive Sequence):
1. **Touch 1 (Day 1 - The Direct Acknowledgement)**: Respectful note acknowledging the exact past friction point, introducing the architectural fix without sounding defensive.
2. **Touch 2 (Day 5 - The Peer Evidence)**: Brief enterprise case study showing how a competitor in their exact vertical solved the same operational challenge.
3. **Touch 3 (Day 12 - The Zero-Friction Test Drive)**: Low-stakes offer to test the newly deployed capability on a sandbox environment with pre-populated demo data.
4. **Touch 4 (Day 20 - The Commercial Window)**: Executive rollover of legacy pricing tier or migration fee waiver with a hard calendar deadline.

Provide subject lines, preview text, email body, and CRM automation trigger triggers for each touch.