userAttributes

An array of name-value pairs representing user attributes.

For custom attributes, you must prepend the custom: prefix to the attribute name.

If your user pool requires verification before Amazon Cognito updates an attribute value that you specify in this request, Amazon Cognito doesn’t immediately update the value of that attribute. After your user receives and responds to a verification message to verify the new value, Amazon Cognito updates the attribute value. Your user can sign in and receive messages with the original attribute value until they verify the new value.

To update the value of an attribute that requires verification in the same API request, include the email_verified or phone_number_verified attribute, with a value of true. If you set the email_verified or phone_number_verified value for an email or phone_number attribute that requires verification to true, Amazon Cognito doesn’t send a verification message to your user.