I have a Journey that from time to time will receive some Contacts. One day will receive 2,000 contacts, two weeks after can receive other 2,000 contacts (the time and number of contacts can vary).
The Journey has a duration of a month and a half. I need to analyze, make report and check the success (opening, bounced back...) in each group of contacts inserted and not all the journey and all contacts in it. How can I do it?