If a contact is added or changed on Magento, it will be automatically updated in Mailjet. But any contact changes on Mailjet will not be updated in Magento*.
* It is possible to have unsubscribers from Mailjet automatically updated in Magento with the configuration of the Event API.
To learn more about the Magento plugin, please read our Magento Plugin Guide.
To learn more about the Magento plugin, please read our Magento Plugin Guide.