HubSpot's integration with Actionstep allows businesses to 2-way sync their contacts between Actionstep and HubSpot. This will duplicate new contact records automatically when created and continue to update all contact information between products as they are edited.
To connect Actionstep & HubSpot, please follow the instructions on this page here: https://knowledge.hubspot.com/integrations/connect-and-use-hubspot-data-sync
Through HubSpot's Data Sync feature you can connect Actionstep to any other application on HubSpot's Marketplace. Simply create a contact data sync between Actionstep & HubSpot and then create a contact data sync between HubSpot and the other application. This will create a chain of synchronisation which will keep all contacts across all 3 applications updated.
See HubSpot's full Data Sync App Library here: https://app.hubspot.com/ecosystem/20347057/marketplace/apps/apps-for-operations-teams