hubspot.upsertContacts to batch create or update HubSpot contacts by unique property.
automations/hubspot-upsert-contacts.automation.ts
Inputs
Provide 1–100 contacts. Each row names its uniqueidProperty, identifier id, and writable properties. Optional second argument { account } selects a named HubSpot binding.
Output
Returns the created or updatedcontacts. Replaying the same unique identifiers is safe. If HubSpot rejects any row, the action fails instead of returning an incomplete result.