Hi @joelramirezleal
Hope you are doing well!
Mailchimp can be synced with 3 fields of Metform and they are First Name, Last Name, and Email. We have limited the field controls to 3, and that is why no other field data will be sent to Mailchimp. We are planning to increase the number of fields to be synced with Mailchimp and thanks for letting us know about that.
We are continuously working on improving our plugins by adding more new features according to our customers’ needs. please add your specific feature requests, valuable improvement ideas to our feature request section. Navigate to the plugin details page, scroll down to the USEFUL LINKS, and there you will find a link named Request a Feature. By clicking on it, you will be able to place your ideas there.
Let me know if you have any further queries or clarifications. I will be happy to help you.
Best Regards
Prosenjit