A customer wants to send an email confirming opt-in when someone signs up for their emails via a form on their website. The email should arrive…

A customer wants to send an email confirming opt-in when someone signs up for their emails via a form on their website. The email should arrive within a few minutes of completing the form, and all of the form data needs to be stored in Marketing Cloud to personalize the outgoing email. The customer has access to a developer for working with APIs, but they want to be able to change the email creative without involving the developer. What should a consultant recommend?