This project aims to provide an example on how to trigger a transactional email using Sendinblue. When a user first signs up, we saved this user to Serverless Data. Save operation to Serverless Data triggers an asynchronous event to save this user as a contact to our CRM in Sendinblue. We trigger an event to send the transactional email finally using our events interface with Serverless Events. See the tentative flow diagram.