I want to upload a list that may have contacts already on another list in CC. If I upload this list and then choose to delete it, will the contacts that were already on previous list be deleted entirely or stay on the previous list?
Hello @OpenD29 ,
You can safely delete lists only without deleting contacts. If you want to delete a list and everyone in it that isn't on another list, that is the default form of selecting the Delete Lists and Contacts option.