Amazon Cognito Triggers: all you need to know about them | Part 1 You can read the blogpost here: https://depascalematteo.medium.com/all-you-need-to-know-about-amazon-cognito-triggers-part-1-57085a126ac1 Cognito users pool Stack User pool App client Lambda role Lambda triggers PRE_AUTHENTICATION [✅] POST_AUTHENTICATION [✅] PRE_TOKEN_GENERATION [✅] PRE_SIGN_UP [✅] POST_CONFIRMATION [✅] USER_MIGRATION [✅] CUSTOM_MESSAGE [✅] CUSTOM_EMAIL_SENDER [✅] CUSTOM_SMS_SENDER [✅] DEFINE_AUTH_CHALLENGE [❌] CREATE_AUTH_CHALLENGE [❌] VERIFY_AUTH_CHALLENGE_RESPONSE [❌] Users table Stack Dynamodb users table Signup reminders Stack Stepfunction steps: Wait Remind user Wait Notify & Delete user