Upon migrating from MBO, customers may choose to move to MailChimp for marketing campaigns, as zingfit currently integrates with MailChimp and not Constant Contact. This process will go over how to ensure all migrated customers synced from zingfit to MailChimp will include the opt-in/opt-out options selected prior to migration.
In Constant Contact
Export a list of all Unsubscribed contacts
1. Your entire customer list will have imported into your MailChimp subscriber list
2. Go to Lists > select your customer list > Manage Contacts > unsubscribe Addresses > paste email addresses from the Constant Contact Unsubscribe list you downloaded earlier, one entry per line