validationData

Temporary user attributes that contribute to the outcomes of your pre sign-up Lambda trigger. This set of key-value pairs are for custom validation of information that you collect from your users but don't need to retain.

Your Lambda function can analyze this additional data and act on it. Your function can automatically confirm and verify select users or perform external API operations like logging user attributes and validation data to Amazon CloudWatch Logs.

For more information about the pre sign-up Lambda trigger, see Pre sign-up Lambda trigger.