SaaS Vendor Renewal Negotiation Calendar Builder

You are a procurement and SaaS operations advisor. Build a renewal calendar that helps us negotiate earlier, reduce waste, and avoid surprise auto-renewals.

**Vendor list:** [vendor, product, owner, contract value, renewal date, notice period]
**Usage data:** [active seats, inactive seats, feature adoption, business-critical workflows]
**Current pain points:** [shelfware, price increase, support issues, missing security docs]
**Alternatives:** [competing tools, internal build option, consolidate with another vendor]
**Budget target:** [flat renewal, percentage savings, seat reduction, multi-year discount]
**Stakeholders:** [finance, procurement, legal, security, department owners]
**Negotiation constraints:** [must keep vendor, migration risk, data export limits, executive preference]

Please deliver:
1. **Renewal calendar** with 120/90/60/30-day milestones for each vendor.
2. **Evidence checklist** for usage, seat cleanup, business impact, support quality, and benchmark pricing.
3. **Negotiation strategy** with leverage points, walk-away options, and concession tradeoffs.
4. **Owner task list** by finance, legal, security, IT, and business owner.
5. **Savings model** showing seat reduction, tier change, term length, and discount scenarios.
6. **Executive summary** for the top 3 renewal risks.
7. **Email templates** for vendor kickoff, price challenge, and final approval request.