1. Go to Marketing > Email > Lists (the Recipients tab) and click + Add List. Enter a Name and Save.
2. Click the list's #ID to open it. Use the buttons in the header:
- Add Users – Select users to add: search registered customers by name or email, select one or more, Save.
- Add from Contacts – Select contacts to add: search your existing contacts, select, Save.
- Upload Contacts – import a CSV (see the CSV question) and tick Add uploaded contacts to the lists you want (the current list is pre-ticked).
- + Add Contact – create a single new contact (Name, Email Contact, Receive Email?) and tick Add this contact to the lists it should join.
3. Members appear in the table with ID, Full Name, Email, Source (Registered User / Uploaded Contact) and Can Receive Email (Yes/No).

Someone already in the list is not added twice. The list is immediately available under the Lists category of the campaign recipient picker.