UAT (User Acceptance Testing)
The customer-led testing cycle that validates Dynamics 365 against real business scenarios before go-live.
User Acceptance Testing (UAT) is the customer-led testing cycle that validates a Dynamics 365 implementation against real business scenarios before go-live. Unlike unit, integration, and performance testing — which are partner-and-developer responsibilities — UAT is run by the people who'll use the system against end-to-end business processes, not isolated screens. A well-run UAT covers all core operational flows, all workflow paths, all integrations, and edge cases specific to the customer's industry and region. The exit criteria typically require all severity-1 and severity-2 defects resolved, business sign-off, training material aligned, and performance acceptable at expected user load. UAT is the customer's confidence check; skipping it ships uncertainty.