The Ultimate SaaS Customer Onboarding Checklist for 2026 (Free Template)

Before the kick-off call (Days 0–2)

Send the welcome email within 24 hours of contract signing. Schedule the kick-off call within 3 business days — not after. Share a pre-kick-off questionnaire covering integrations needed, key stakeholders, and the customer's definition of success. Create the onboarding plan in your CS tool before the call, not after.

The kick-off call (Day 3)

Walk through every stage and task in the onboarding plan. Confirm the go-live date and work backwards. Assign every client-facing task to a named person on their side with a real deadline. Explain what happens when something gets blocked — make it easy to flag, not embarrassing. End the call with one immediate action the client commits to completing today.

Stage 1 — Access and setup (Days 3–8)

Account provisioned and login credentials sent. All integrations configured and tested. User permissions set correctly. CSM confirms everything is working before moving to Stage 2. This stage is where most onboardings stall — have a blocker SLA of 24 hours.

Stage 2 — Configuration (Days 8–18)

Product configured to match the customer's workflow. Data imported and validated. Custom fields, templates, or workflows created. CSM review and sign-off before advancing. Assign configuration tasks to the client with email-first completion so they act from their inbox.

Stage 3 — Training and go-live (Days 18–30)

Admin training completed. End-user training completed for all primary users. First real use case completed live with CSM present. All questions answered and documented. Go-live confirmed in writing. Schedule the 30-day business review before the call ends.

Post go-live (Ongoing)

7-day check-in: is everything working? Are there any blockers? 30-day business review: document wins, measure against success criteria. 90-day QBR: expansion conversation, NPS, renewal narrative begins.