Customer Implementation Plan: Phases, Owners and Exit Criteria

Use these six phases as your starting outline:

1. Kickoff and scoping: confirm goals, success measures, scope, timeline, team members and a single project owner on each side. Exit: signed-off scope and goals.
2. Data and access: collect the accounts, permissions, data files and system access needed. Exit: all required inputs delivered and validated.
3. Configuration and integration: set up the product for the customer's process, connect to their systems and load data. Exit: a working configuration in a test environment.
4. Training and enablement: train admins and end users on the workflows they'll actually use. Exit: named users can complete the core tasks unaided.
5. Testing and go-live: run acceptance tests against the agreed criteria, fix defects and launch. Exit: customer approval and a go-live date.
6. Hypercare and handoff: give closer support for a defined period, then transition the customer to ongoing support and success. Exit: the first value event is confirmed and the handoff is accepted.

Each exit criterion should be checkable by someone other than the project owner, so a phase can't be marked done on opinion.

Put a name against every task. A workable split:

• Project owner (yours): runs the plan, chases dependencies and reports status weekly.
• Project owner (customer): makes decisions, arranges access and represents their internal stakeholders.
• Technical lead on each side: handles integrations, data and testing.
• Executive sponsor on each side: unblocks decisions the project owners can't make.
• Sales representative: available during kickoff to clarify what was promised, then steps back.

Note the customer's tasks explicitly, with dates. Implementations most often stall waiting on the customer for data, access or approvals, and a plan that only lists your tasks hides that. A shared plan lets both sides see whose task is late.

Say you're onboarding a mid-sized customer to a workflow product, with a six-week target. One realistic layout:

• Week 1: kickoff, scope sign-off, and requests for data and access sent the same day.
• Week 2: customer delivers data and access, and you validate it. Any gaps get flagged immediately, not at the configuration stage.
• Weeks 2 to 3: configuration begins as inputs arrive, with integration work in parallel.
• Week 4: training sessions for admins and pilot users, and a test run using the customer's own data.
• Week 5: acceptance testing, defect fixes and a go-live readiness check.
• Week 6: go-live, then hypercare with daily check-ins for the first few days.

In this example the plan's greatest risk is week 2. If the customer's data arrives late, everything after it slides, so put a date on it in the contract or kickoff notes and escalate to the executive sponsors on the first miss.

The onboarding plan template covers the earlier stage, and the mutual action plan template shows how to agree the same kind of shared plan during the sale.

Two habits prevent most surprises. First, keep a short risk log: for each risk, write what could happen, who owns it and what you'll do if it occurs. Review it in the weekly status meeting. Typical entries include late data, a key person going on leave, an integration with an unfamiliar system and requirements that weren't in the original scope.

Second, use a simple change process. When the customer asks for something outside the agreed scope, record it, estimate the effect on time and cost, and get written approval before you do it. That protects both sides. Otherwise scope grows silently, the timeline slips and neither side can say why.

Also set a communication rhythm: a weekly status update with what's done, what's next, what's blocked and who owes what, plus a shorter check-in when a phase is at risk.

Watch for these early warnings:

• Customer tasks stay overdue for more than a few days.
• The same decision appears in status updates two weeks in a row.
• Attendance at meetings drops or the customer's project owner changes.
• Requirements keep changing after scoping.
• Training is scheduled before configuration is stable.

When you see them, name the issue in the status update, ask the executive sponsor to intervene and re-plan the dates instead of hoping to catch up. Shared project tools such as GuideCX put customer and vendor tasks in one view, which makes slippage visible earlier. Compare options in the GuideCX, Arrows and Baton comparison. After go-live, link the project to health monitoring with the customer health score template and the QBR template.