Subject: Introducing [Vendor] — our new [service]

Hello team,

I'm pleased to introduce [Vendor name], who as of [Date] is our partner for [service].

**Why we chose them:** [One sentence reason — quality, cost, capability, fit].

**Scope of their work:**
- [Service component 1]
- [Service component 2]

**Out of scope (don't ask them for these):**
- [Common adjacent thing]

**Contacts:**
- Account lead at [Vendor]: [Name, email, phone]
- Operational contact at [Vendor]: [Name, email]
- Our internal owner of the relationship: [Name]

**For day-to-day requests:** please use [system / channel / email] — not direct phone calls or LinkedIn DMs.

**Contract and SLAs:** stored at [link].

A short kickoff session is in everyone's diary for [Date] — please come with one question.

[Your name]