Please send more information from Optios directly via api to mailchimp. Mailchimp works with merges, so you can select much better. Please have an idiosyncratic field, so that the salons can choose for themselves and mail in a more targeted manner. Think of first name, last name, gender, date of birth, location, treatment groups, article groups, etc.

The link is already there so expanding should not be a problem, especially in terms of lead time.

we'd love to hear it?