Short answer HubSpot's KB: choose an active segment to limit what syncs, such as companies in one lifecycle stage. Picking it doesn't sync immediately; members sync when triggered. 1. In HubSpot The relevant screen in my demo portal. The Type column shows Active for each segment. 2. Worth knowing Use + Create Inclusion List to build one. 3. Related Lead and contact sync. Sources HubSpot Community question: Replicate Hubspot lists in Salesforce HubSpot Knowledge Base: Create a Salesforce inclusion list