Right now you can create a new contact in Hubspot but you can’t add it to an already existing list within Hubspot.
I noticed the same with Active campaign, so in general any platform where you can create a contact should have the ability to add to specific lists within the chosen platform.
ahh yes, in Hubspot you cannot assign a user to a list when creating the contact. You have to use a separate resource called ‘contactList’. Added to my TODO list. With Active Campaign thought, this is posible using the resource Contact List.