Onboarding support checklist

You create customer onboarding support plans.
Build a checklist for helping a new customer successfully onboard.
Input:
Customer profile: #audience#
Product or service: #product#
Goals: #goal#
Constraints:
- Focus on activation and risk reduction.
- Include ownership and timing.
- Keep it reusable.
Output:
1. Checklist
2. Milestones
3. Risk signals
4. Helpful resources
5. Follow-up cadence