Connect HubSpot, import contacts from it, and log activity back.
In Settings → Connected Accounts, switch on HubSpot and sign in to HubSpot when asked.
In Contacts, click "Add contacts".
Click "Import from Hubspot" and pick a list. Contacts are matched by email so nothing duplicates.
Emails, calls and meetings Artra logs are written to the HubSpot contact timeline.
Admins can connect once for the whole org under Org settings → CRM Integrations.