Automating end-to-end flows like user registration, password resets, or OTP verifications often hits a wall when dealing with emails. Automating UI login for webmail providers like Gmail or Outlook is flaky and frequently blocked by 2FA or CAPTCHAs.
Using Microsoft Graph API with an Azure App Registration (Client Credentials Flow) lets you fetch target user inbox messages programmatically in your Playwright tests without any UI interaction.
1. Prerequisites & Azure Setup
Before writing test code, configure your Azure Entra ID (formerly Azure AD):
Register an App: Go to Azure Portal > App registrations > New registration.
